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[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "why people think the moon landing was fake?" ]
There's no good reason for it. Some people just believe crazy things.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do we get nightmares when we are feverish or sick and fall asleep?" ]
Dreams are not fully understood, and neither are nightmares. Based on empirical findings there are several theories that present themselves. Based on those different theories there are different explanations and answers to your question, but our knowledge in this area and the brain as a whole is surprisingly limited. Nightmares are defined as bad dreams. The most reasonable theory would be the Modern (Freudian) Theory: Most people today subscribe to this theory that dreams are a connection to our unconscious mind ie. our hidden desires and true feelings. Hence, when you are sick, the emotions generated in our unconscious mind correlate to those which have been proven to elicit nightmares, as dreams are a reflection of out strongest, most abstract emotions according to this theory. Stress and discomfort cause bad dreams as a result. Nightmares due to being sick or going through a rough patch in life have the same cause.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Would Michael Phelp's 'special' genes make him good at sports other than swimming" ]
No sport puts as much emphasis on upper body strength as the Butterfly, except probably wheelchair racing. His reaction time seems pretty good, and he could probably hit baseballs pretty well. Translating that into a baseball defensive position seems questionable. Maybe golf, though that's much more finesse than raw force (drive for show, putt for dough). Some boxers have long reach, and power helps there, but the short legs might not be a plus.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why is the Earth's moon named The Moon while other planets' moons have actual names?" ]
Because it was named centuries before we knew that the planets had moons. To discover the moons round other planets we needed to invent the telescope and then realised that there were a lot of moons out there so they needed names to identify them.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What exactly is our problem with immigration?" ]
Immigration is a fantastic concept that allows many people from different countries to give themselves or their children an opportunity at a better life. Illegal immigration is a problem because unregistered people use a countries healthcare, school system, and public facilities. This weighs heavily on the countries tax payers as there is no one to pay taxes for unregistered citizens.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do humans respond faster to auditory stimuli than to do to visual stimuli?" ]
Research is still a bit fuzzy, but the hypothesis involves 2 parts. A. your ears utilize reflexes, which are faster than responses (responses involve additional levels of processing in the brain). Essentially, there is less processing that is needed for an auditory stimulus than a visual stimulus. B. The nerve that transmits auditory information is shorter than the nerve that transmits visual information. The auditory nerve travels from your ear to a very close region of your brain, while the optic nerve (vision) has to travel all the way to the back of your brain (the occipital lobe) in order to transmit its information. While this difference in length and speed is negligible to you in your every day life, it is significant when it comes to quick reflexes and responses
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How does hydroplaning happen? Is there any \"safe\" speed?" ]
When there is water on the road your tyre has to shove it out of the way if it's to stay in contact with the road. The tyre has grooves in it to make this easier, but there's a limit to how fast they can move water. Exceed this and the water builds up like a wedge under the tyre, lifting it off the road. You are now no longer driving but sliding on a thin layer of water. Brake and the wheels will stop but the road doesn't care (for a while) and you'll just carry on. Likewise you'll not be able to steer. As explained, there is a speed at which the tyre cannot shift the water fast enough. Below this speed you still have contact - though as you approach lift-off you'll have progressively less contact as the wedge develops. You can sometimes tell because the road noise drops away suddenly. The safe speed is well below this!
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "- Homeownership (specifically first time home buyer)" ]
I can't stand this "rent is a waste" argument. It isn't. You need a place to live, rent provides that. Stop that. Home ownership isn't the fairy tale people make it out to be, and in many, if not most cases, you lose more over the course of owning the home than you would from the sale.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why does the handle in a clay cup not heat up when there is hot liquid inside, but does when you place a cover over it?" ]
Because heat rises. The handle is not only off to the side, but ceramic is very good at insulating heat, the handle has a huge surface area that touches the air to keep the handle cooler than the cup as a whole.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "the materialist conception of history" ]
The materialist conception of history is the idea that history is driven primarily by *wealth*. That is, you can explain most major events in history by noting that people acted to gain more wealth or keep the wealth they had. This view was popularized by Marx, because he thought that communist ideology was a natural result of it, but in modern times a lot of people who don't necessarily agree with his ideology have adopted it.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Where Did the Money From the Stock Market Crash Go?" ]
Imagine that everyone in your neighborhood has been buying Special Bags of Gold for many years as an investment. Everyone has put a fair amount of money into buying these Special Bags of Gold and they have all been told that their value has increased over the years. Typically, 1/2 of everyone's net worth is stored in the Special Bags of Gold, which they sell to each other at ever-increasing prices. One day, someone opens on of his Special Bags of Gold, to discover that it contains nothing but dog shit. He tries to sell his bags off as quickly as he can before others discover their contents, but word travels fast and soon everyone realizes that 1/2 of their wealth is worth nothing at all.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "why do my previously broken body parts hurt when it rains." ]
no one knows for sure. but some theories.. _URL_0_
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why didn't many people evacuate Hiroshima and Nagasaki after the warning leaflets were dropped?" ]
Everyone is talking about the leaflets, but the other half of the story is that Japanese cities were being bombed every week. And these cities had more deaths and destruction than Hiroshima and Nagasaki (though caused with multiple bombs). Looks like 105,000 were killed from nuclear weapons while fire bombs killed 500,000. _URL_0_ ELI5: A pack of school bullies have been taking your lunch money every couple of weeks, usually $5 to $20. One day just one bully shows up and takes $15 instead of the usual pack of three bullies. To you, it might not seem that different than the other days, so why skip school that day?
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Indiana's Religious Freedom Bill" ]
It allows business owners to decide for themselves if they want to celebrate homosexual marriage, based on their religion. So if a gay couple comes into a bakery asking for a cake for their wedding, a Christian baker wouldn't have to bake one. However, if they came for a birthday cake, the law would not protect the baker if he declined based on his faith, as celebrating a homosexuals birthday does not qualify as celebrating homosexuality.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What is Big O, Big Omega, and Big Theta Notation?" ]
When you have two sequences or functions, you are often interested in how fast they grow compared to one another. For example, suppose you have two functions f(n) and g(n) that tell you how many operations two different algorithms use to sort a list with n elements. As n gets bigger, if the number of operations f(n) gets bigger faster than the number of operations g(n) gets bigger, then you would say that g(n) is a more efficient algorithm. There are a variety of ways to make that idea more precise, and Big O/Omega/Theta are one of them. "f(n) is Big O of g(n)" means that the rate of growth of f(n) is at most the rate of growth of g(n). "f(n) is Big Omega of g(n)" means the rate of growth of f(n) is at least the rate of growth of g(n). "f(n) is Big Theta of g(n)" means f(n) and g(n) have the same rate of growth.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How you make broadband faster." ]
Broadband is like a chain, its as strong as your weakest link. Therefore you need to trace everything back from your devices back to the ISP
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do digital downloads of games cost the same amount as a hard copy?" ]
Because if they were cheaper, people would have much less reason to buy a hard copy. There'd be no real reason to pay people to manufacture them, ship them, or sell them. The people who own those businesses want to stay in business, so video game developers are careful not to screw them over.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Are there any other species besides humans which naturally (i.e. without training) understand pointing? As in if I were to point to an object, a member of this species would look toward the object and not the tip of my finger?)" ]
[Elephants](_URL_0_) point and understand when we point at things too.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How do electronic devices or circuits know how much current to draw from a power supply? What determines how much current it needs?" ]
The circuit has a characteristic resistance. The source voltage divided by that defines the average current required. Of course, things are more complicated than that, because the actual current varies from time depending on what state the circuit is in, but that's not as ELI5 an explanation. Things are always more complex than they seem in ELI5. In the case of your computer, if the power supply says 1A then under no circumstance does it need more than 1A. It probably only takes 0.5A most of the time, but the power supply has to allow for startup surges and special cases.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "When something stressful happens, people are initially calm. Once the situation is passed, then stress sets in" ]
Stress actually focuses you initially. Afterwards adrenaline is still in your body, which triggers other physiological reactions we normally associate with panic. Some people just react differently to the situation mentally.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How does rubbing batteries together restore their charge?" ]
It doesn't. What does happen, is that since you're holding the batteries, you're warming them up due to the warmth of your hands. Chemical reactions happen faster at higher temperatures, and as such, warming the battery produces a slight boost.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do vehicle speedometers go so high?" ]
It provides the illusion of performance. Having a speedometer that goes high implies that the car *must* have stronger engines. Also, in other countries, like Germany, cars that travel on the unrestricted autobahn can reached higher speeds. It's also cheaper for one car company to use the same speedometer across all their models.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Is there a way to get over phobias?" ]
Different things work for different people. Some people get help from hypnosis, some have a really gradual desensitization/exposure therapy. [This is a link](_URL_0_) to a self desensitization therapy. My advice would be to skip past the nonsense pre-reading to "step 1." Essentially the most common way to get over a phobia is to practice relaxation techniques enough that you get really good at them. Then, you spend a few minutes every day on a "hierarchy of exposure" where you use those relaxation techniques. For you, as an example, the hierarchy might be for the first few weeks, to think about a bug far away from you, then a few weeks after that might be to think about a bug outside your house, then inside your house, then inside the room, then actually seeing a bug, then actually touching the bug. After each thing (like thinking about the bug far away), you'd practice relaxing yourself every day until it became second nature to be relaxed in that situation... then you'd move on to the next thing.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why is gambling so restricted in the US?" ]
TLDR: Religion in the past, corruption in the present. Originally gambling was restricted on religious grounds. Then it was restricted because of inertia (restrictions already on the books and nobody cared enough to have them repealed). Sometime in the second half of the 20th century, states discovered how much money they could make by having a monopoly on gambling through the state lottery. Recently many states have opened casinos, but typically licensing is rigged so a few businesses with good political connections are decently shielded from competition.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why don't engines create max hp at max rpm?" ]
Horsepower is a measure of work which is force over time. Assuming that each cylinder produces the same amount of force every 4 stroke cycle, the more cycles you can pack into a given amount of time, the more work. So your gut feel is mostly correct. Because the rpm keeps increasing, but the cylinders are still producing the close to the same amount of force, the peak hp is up near the red-line. There are other forces at play which can cause the peak hp to be somewhere else like increased friction at very high piston speed or pumping losses due to trying to get air through a fixed size hole (the valves are the restriction in most cases) at increasing speeds. Those other factors can eventually overcome the gain from additional cycles as rpm increases.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why, when looking at a computer screen from a lower angle, do the colors invert to a weird blue and black?" ]
Light coming at a flat angle from the screen has passed through a thicker layer of liquid crystal than intended, and is thus more rotated. Colors that were supposed to be blocked may thus pass, and colors that were supposed to pass are thus blocked.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "- why auto manufacturers don't install solar panels in the roofs of their electric/hybrid vehicles" ]
Solar panels covering the roof of a car would produce a minuscule amount of energy. It's not worth it.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How do shows such as moonshiners get away with all of their illegal actions if the identities and methods are portrayed up front on television?" ]
Hate to ruin the magic but its fake. Also the methods are never really shown, generally key details are always left out.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why is a Pint of Guinness so much better in Ireland/NYC/London etc. than my suburban bar?" ]
I haven't been able to verify it myself to take this with a grain of salt. Guinness in Ireland or other more populated areas will be fresher and will end up tasting better. A pint of Guinness at your local suburban bar will be shot out of a keg and through lines that have had older staler Guinness in it for much longer than a keg in a bar where more Guinness is consumed much more quickly. Basically, the Guinness in your suburban bar is more likely to be old.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How do our eyes know when something is just about to hit them? Like when a bug hits my closed eyelid when just a second ago it was open." ]
Eyes are great at detecting motion and changes, and the nervous system is much faster than conscious thought. You reflexively blink before you're aware
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Is posture and muscle balance more important than the type of mattress you're sleeping on to relieve back pain?" ]
I have no medical education, but speaking from experience as someone with 3 herniated discs, I can say the mattress makes a huge difference. I was studying abroad when I had my first crisis because of an herniated disc and the mattress provided by the university was complete shit. As soon as I got home my pain reduced a lot in a couple of weeks due to a better mattress (my home mattress was A LOT harder if you're curious). But posture does make a difference. Not so much when walking and standing, but sitting correctly helps a lot, specially if you're sitting for a long period of time in class or work.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Is there some cultural significance to a male Asian child always having his junk out in public?" ]
In rural China kids (regardless of gender) wear [crotchless pants](_URL_0_) for ease of peeing or pooping. In Chinese cities this is seen as a very trashy thing to do now, since more sophisticated parents buy diapers and peeing or pooping everywhere is not acceptable (and doctors warned about UTI). There are countless numbers of internet forum posts talking about how trashy and embarrassing those rural folks are, especially outside the country.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Historically, does socialism work long-term? Why or why not?" ]
Social policies mixed with capitalism have been proven to work very well together. This includes the United States, Canada, and many European countries. Pure socialism (public ownership of *all* means of production) has never been properly implemented. Capitalism comes with many inherent flaws, and a "mixed" approach which applies social control over some aspects of the economy seeks to remedy those flaws.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How does soap kill bacteria?" ]
bacteria have a lipid encasing that soap will adhere to, soap has two ends, one that likes water and one that likes fats. lipids are a fat. one end hooks onto the lipid coating, the other end hooks into the water. this allows the bacteria to be washed away.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do modern lightbulbs seem to only last for eight or so years but the first lightbulb ever made still runs today?" ]
It's not the first bulb ever made that still runs today. Early light bulbs used to last only a few hours before burning out. A specific light bulb, with low energy consumption and a thick carbon-based filament (that they're not quite sure what it's made of...) still runs after over a hundred years of continuous use, but we don't want dim light for a long time, we want BRIGHT light to illuminate our hovels, and that wears out components much more quickly.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Would it be possible for animals to have sex and babies with another subspecies? (like chimpanzees having sex with orangutans)" ]
This doesn't work in most cases. One case where it works is for example horse and dunkey, their children can be two different subspecies, depending on which of those two is the male and the female. The problem here is, that this animals can't recreate further.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What does it mean to unlock your phone to another service provider? And why, depending on the brand, does it cost so much and take so long?" ]
Most phones are *capable* of talking to other carriers that use the same networking technology. For example, in the USA, AT & T T-Mobile and I think a couple others all use the same GSM system. However, if you buy a phone through one of those carriers, they put a piece of software in place that checks who you're trying to connect to, and will block it if it's not AT & T or whoever. Why? Because they gave you a bargain/contract when you bought that phone through them, and they want you to stay inside their network. Thus they make unlocking the device and leaving their network challenging and/or expensive. If you leave, they don't make money billing you. Cell phones not purchased through a carrier company are unlocked and can be used with any compatible network.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "what is social engineering?" ]
Social Engineering is using specific triggers and actions to provoke an action in a person or group of people. Reverse Psychology on children is a simple example, but it gets pretty deep down the line. Things like mob mentality, mass hysteria, and moral panic can all fall under the heading when provoked intentionally.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do guys get hard in the morning? (NSFW)" ]
During REM sleep, the deepest part of the sleep cycle, during which dreams occur, a lot of the body's functions effectively run on autopilot. One hypothesized consequence of this is that the chemical signals made by the body to prevent erections are not made during REM sleep. As a result, men will get erections during their sleep and possibly immediately after waking up. Fun Fact: The scientific term for morning wood is "nocturnal penile tumescence."
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "why diffrent alcohols effect me." ]
Because they're different alcohols made of different things. > One reason for the different effects of vodka and bourbon, Rohsenow says, could be that bourbon contains 37 times more toxic compounds than vodka does, including nasty organic molecules such as acetone, acetaldehyde, tannins and furfural. A good rule of thumb for liquors, she says, is that the clearer they are, the less of these substances they contain. [Source](_URL_0_)
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How does 'zipping' a file make it smaller? Why does it need to be unzipped? What is actually happening?" ]
File compression usually looks for patterns within the file on your disk and replaces them with something smaller. Let's compress ``banana``. We'll replace the pattern ``na`` with the character ``%`` Which reduces the word down to ``ba%%`` Then we build a table of things that were replaced so we know ``%==na`` Decompressing a file does that in reverse so you know ``ba%%`` is actually supposed to say ``banana``.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do I always need to go to the toilet at the same times every single day? How is there no variation?" ]
You must have a fairly regular diet and fiber intake. Most people would kill for that kind of regularity.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do people seem more saddened by the abuse & death of animals than the death or abuse of other human beings?" ]
generally speaking animals are viewed as innocent almost child like. humans on the other hand are viewed based off what they do and how they act. depending on how cynical of a person you are you will view people as less than innocent.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "The California Energy Crisis of 2000 and the Enron Scandal" ]
As for the energy crisis, basically Enron would cut off the power supply so that the cost of electricity would skyrocket, and then turn it back on in order to make more money. Enron in general, that was mostly down to a type of accounting they used that let them declare potential earnings, so that it always looked like they were making loads of money when they were, in fact, losing money. I would recommend the documentary "The smartest men in the room" If you want to learn more
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why does McDonald's only sell the McRib for part of the year?" ]
To give a bit of evidence for what everybody else is already saying: > Aside from weak sales, other theories for the limited availability of the McRib include the higher prices and unreliable supply of pork, the limited-time allure making it a better loss leader for McDonald's, and the scarcity adding to the hype of the sandwich.[19] An informal 2011 study into the "Existence of the McRib" draws a correlation between the price of pork and the timing of McDonalds offering the sandwich, as all five of the US McRib offerings beteween 2005 and 2011 have occurred during low points in the price for pork.[20] _URL_0_
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why doesn't North and South Dakota concatenate to just form a single Dakota state?" ]
Because they'll go from 4 senators to 2, that's a reduction of political power. And then you'd have to harmonize the taxes, and that's going to be annoying.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How does wind make it colder outside?" ]
Our bodies give off heat which heats the air around us. If that air stays around us longer then we feel warmer, but if it is quickly pushed away by wind, we'll feel as if it's colder.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "No, we aren't actually 5." ]
Keep your answers simple! We're shooting for elementary-school age answers. But -- please, no arguments about what an "actual five year old" would know or ask! We're all about simple answers to complicated questions. Use your best judgment and stay within the spirit of the subreddit. - as per the Subreddit's guidelines.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Can someone please explain the six-day war to me?" ]
Israeli here. Feel free to ask any questions, i see someone has already given you the history lesson on the six day war.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How does a defibrillator help with a physical blockage of the heart, such as myocardial infarction?" ]
It's usually a CPR scenario, where the heart muscle is, indeed, still dying, but without blood pumping neurons in your brain are also dying, quite a bit more rapidly than heart muscle cells, and also irreversibly. And, ultimately, artificial hearts and heart transplants are possible, whereas brain replacements or transplants are not. CPR scenarios are very much "tough choices; deal with the biggest emergency now, leave the 'possibly fix later' for later." As another example, the chest compressions that you see recommended in the basic CPR videos are somewhat likely to [break ribs](_URL_0_), and in training they do mention to continue even if you feel and hear the cracking sounds, because getting blood to the brain is super-critical, and your chest compressions may just deliver a little bit of blood pressure, perhaps just enough.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why the word I is always capitalized but he and she aren't?" ]
Nobody knows, but you can read about some theories here: _URL_0_
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why does running water increase the sensation of having to urinate?" ]
When you urinate, you produce the sound of running water. The sound and the sensation of urinating then become linked, much as Pavlov's dogs linked the sound of a bell with food. The dogs involuntarily salivated when hearing the bell, you feel like you're going to pee your pants when you hear running water.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How does the ocean go through two tide cycles in a day, where the moon only passes 'overhead' once every 24 hours?" ]
To grossly oversimplify, one tide is caused by the gravity of the Moon, the other is caused by the centrifugal force of Earth orbiting the shared centre of gravity of the Earth-Moon system. Both are delayed from when you'd expect them to happen by the friction with the bottom of the ocean.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "The difference between \"internal\" resolution and \"monitor\" resolution in video games" ]
Slycone is speaking out of his or her ass. Resolution is the dimensions of the number pixels you're talking about (e.g. 1024x720). Framerate is framerate (e.g. 60FPS = 60 Frames Per Second) Basically, the game is being rendered (produced) at 1024x720. It is then "upscaled" to the chosen resolution, which means something has to basically make up stuff to go in the gaps between the "actual" content. To see why this is bad: [Original image](_URL_1_) [Image after being resized to 30% then "upscaled" to the size of the other image](_URL_0_) As you can see, data is lost, and it just isn't as good. It's better to render (produce the images) at the resolution you want to display rather than scale it up. Takes more processing power to properly generate the images rather than "upscaling" which is probably why they did it.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What causes that unique smell of snow?" ]
Cold air dampens your sense of smell because it numbs the scent receptors in your nose. Also, similar to rainfall the water has been cycled from source to cloud to destination so it is fresh and not stagnant like a pond could be. Static water goes off due to external chemicals leeching into the water and contaminating it. So what you are smelling is true H2O. Similar to if you burn your tongue food tastes different.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do I get goosebumps when I hear really good music?" ]
There is a flight or fight, adrenalin release which explains that. When very high emotions are felt, dopamine and other neurochemicals can be released. This causes a thrill thru the body, occ. tingling sensation, increased heart rate, goose bumps & so forth. This is often seen with the "1812 Overture" by Tschaikovsky when real cannon and large bells are used. it's fairly overwhelming. Similarly very moving scenes in some films can create this state. IN Beethoven's "9th Symphony" the first time the Scherzo was played, the audience was so profoundly moved, they had him play it again. And when the "Ode to Joy" was played, inspired by Schiller's poem of the same name, a similar encore was demanded. Please peruse section 18 of this article under "Die Gotterfunken" Literally, Spark of God. _URL_1_ and also this, which explains the dopamine boost, what it does and how to create it voluntarily. _URL_0_
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why can a person doing an illegal action (burglary, trespassing) sue the property or owner?" ]
Often these cases are thrown out almost immediately. They are not thrown out, however, if there is a case of disproportionate or illegal actions taken by the homeowner (what is considered disproportionate and illegal is obviously defined by the laws of that place). Basically, just because the robber is breaking the law, doesn't mean the homeowner is also suddenly allowed to break the law. And if the homeowner breaks the law, then yes, they open themselves up to get sued.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What is the purpose of the \"Insert\" button on a keyboard?" ]
Depending on the program, it lets you toggle insert mode between "insert as I type and shift characters to the right" and "insert as I type, but delete characters to the right". In simpler text widgets like in your browser here it does nothing. Standard behaviour is to shift characters to the right as you insert. It really is more of a holdover from the old DOS/*ix terminal days when inserting characters and deleting to the right was something you'd actually want to do on a command line.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Can animals become feral?" ]
Pigs revert. When domesticated pink pigs escape barnyards and get into the woods, their hair grows thick and bristly and they grow tusks. It doesn't take them generations to do this, the actual pig who escaped gets wild again.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What's the difference between sweet potatoes and yams?" ]
in North America, we call a particular variety of sweet potato, Ipomoea batata, "yams". This variety of sweet potato is very sweet even for a sweet potato and with markedly orange flesh. Most other sweet potato varieties are more white and less sweet and more starchy. It is a staple crop, after all. This also gets confused with the yam of Polynesian and African cultures, which is in the class (or is it order or genus?) Diascorea, the various cultivated species all being similar in cultivation, growing underground over a long period of time and making HUGE 80+ lb. tubers which keep pretty well once unearthed. These plants are more related to elephant ear plants, whereas the sweet potato is in the morning glory family. So it's a confusing clusterfuck of repeated names, specific varieties vs. species , and what have you
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do we have nerves in our teeth? Wouldn't a tooth ache that hinders our ability to eat end up being a disadvantage for survival?" ]
If you have a tooth ache caused by an infection, how would you know if you didn't feel it? that infection would go untreated and become more dangerous.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do people look visibly different when they wake up in the mornings?" ]
It has a lot to do with the horizontal vs vertical body position. The body has a high water content and throughout the day gravity plays it's part moving fluids around the body, and even compressing the spine so that we are very slightly shorter at night than we were in the mornings. Laying in a horizontal position whilst we sleep redistributes fluids with a stronger bias towards our face/head, which may result in a puffy face, particularly if you don't use a pillow or your heads leans off the side of your bed. With these fluids are toxins, and since the face consists of sensitive membranes and thinner skin, inflammation is much more prevalent and noticeable. Allergies, which often kick in at night, may also contribute to puffiness along with the dehydration. Also keep in mind that when someone wakes up you are also seeing there unadulterated natural appearance ie scruffy bed hair and no make-up or creams!
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How do civil engineers ensure the on-ramps and overpasses supported by manmade dirt slopes never collapse?" ]
A pile of granular materials has a property known as "angle of repose" which is the angle the side slopes of a pile of that material spills to when left alone. Embankment sideslopes are designed at an angle less than this angle of repose to keep the sideslopes stable. Secondly, the material is compressed, this tends to lock the edges of the grains together and it also tends to remove voids. Remove the voids prevents water from running between grains which could destabilise them. Compacted earth is often also vibrated as it compacted so that the grains move around and fit together better - as an experiment, try gently shaking a coffee jar, and you'll see the level of the coffee drop as the grains fit together better.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do TV shows use fake bills with small amounts of money?" ]
On the Breaking Bad Insider Podcast they talk about how showing real money on TV is illegal. The reasons for this are complicated and strange but basically they'd be showing real serial numbers which can be used by counterfeiters.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why should I give money to PBS when they have ads for Ralph Lauren, Goldman Sachs, Viking Cruises and more?" ]
Your local affiliate doesn't get funding from those entities, the production companies do. Your local affiliates need to pay bills and pay fees and are non-profits.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do we get lightheaded when standing up quickly after sitting/laying down?" ]
It's called orthostatic hypotension. When you are sitting your blood vessels contract or bend depending on how you're positioned, restricting the blood flow. When you stand up too quick, your blood vessels open up all the way and give the blood a lot more space to move which lowers the pressure. All of a sudden, your brain isnt getting the blood it needs so it starts cutting off major functions to conserve energy, starting with eyesight and hearing until you eventually faint (if it were bad enough). For most people it only takes a few seconds for their bodies to adjust and get their pressure back to normal but people who already have low blood pressure or people who are drunk (alcohol lowers blood pressure) are at a much higher risk of fainting or worse because their bodies cant restore pressure quickly enough. If it happens to you often, have your blood pressure checked out or stretch out your legs before you stand up. Hope this helped!
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "[NSFW] ELIama5yearoldwhofoundhisdad'shiddenpornfolder: Why does so much porn end with the man coming on the woman's face?" ]
Explain it like you're five? You know better than to go playing around on daddy's computer, you're only allowed to use *these* games over here. Now, I'm not mad at you, but what you saw is for daddy and mommy to watch. Starting tomorrow, you're not allowed to use the computer until we can get you your own. Now go watch some TV, Mr. Rogers is on.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "(explainlikeimfive) : Stocks and the Stock Market Explained!" ]
now someone needs to explain futures, options and derivatives edit: Also one thing I am not sure about is what someone with a controlling interest can decide versus the board and CEO. I know the board is appointed ?by who? and the CEO is elected by the owners who can pick themselves? like Rupert Murdoch, right? I am thinking Carl Icahn deciding things when he owned stuff, but you hear of stock holder protests when a CEO does something they don't like???
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "The main differences between Catholic, Protestant,and Presbyterian versions of Christianity" ]
**Catholic**: Closed-source, cloud based, shared hosting environment. Registration required. Expensive up-front licensing agreement, but discounts available for charitable gifts, charitable acts and confessions. Governed by iron-clad EULA. Dedicated 24-7 customer support. Help files are extensive, but patches are rarely released. **Protestant:** Open sourced, free download! System requirements are minimal, and there's a huge array of modules available, but not all of them are compatible since there have been several major development forks. Usually easier to do a fresh install on a new partition than to debug. **Presbyterian:** Technically a major fork of Protestant 1.0, but embroiled in an ongoing flame war by user "John Calvin" who claimed the O.S. was "predestined" and therefore not subject to previous EULA or DMCA requirements. Focused heavily on user interface and localized (mostly Scottish) language hooks.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why is it that when in warm water we gain the urge to pee?" ]
Warm water relaxes you - when this happens, the parasympathetic nervous system (also known as the "rest & digest" system) takes over. It basically lets your body know "Hey, you're in a safe place where you won't be attacked, this is a good time to pee"
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why does skin peel after a sunburn?" ]
You skin is made of several layers of cells. When the DNA in a skin cell get whacked by the sun's ray hard enough, the cell self-destructs and dies (if it doesn't you might get skin cancer). When you get badly sunburned a whole bunch of skin cells in the layer might self-destruct. Other cells in charge of clean up for your body, see that there is a dead cell, so they eat it, cutting it's connection to the living cells. Since the cells in the sun burned layer are dead, there aren't any cells to cut it apart, so the whole patch in the whole layer peels off.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why is Brazil still hosting the Olympics?" ]
They are the ones that won the bid. There is not really a system in place for the Olympic committee to withdraw who won once it has been decided, and even if there were there is not time for an alternate to prepare.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why did brown sugar get so popular instead of recipes calling for sugar and molasses separately?" ]
It's because brown sugar is actually an intermediate step in the refining of sugar, it's not just literally white sugar + molasses. (Or at least it used to be - today it probably is white sugar and molasses in the United States.) So brown sugar was an ingredient on its own.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why some states aren't eligible for participation in sweepstakes, promotions, etc.." ]
Some states have passed specific laws banning these types of promotions. There was a time when there were a lot of scammy, fraudulent "sweepstakes" that harmed a lot of people. The states took action to restrict the ability of companies or individuals to run those kinds of promotions. Since Amazon is so big, it would face meaningful sanctions in those states if it ignored those laws.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do Zambonis need to be so big?" ]
To hold more warm water so they can clean/smooth ice more effectually. How whole internal parts works I am not 100% on. But playing hokey for 10 years you tend to notice things. I know it picks up the ice it scrubs off and melts it for more water to use. As well as it needs weight so the tires/treads can actually move.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "The process of an american traveling to Cuba" ]
First you have to get a visa. There are no tourist visas right now, so you have to apply under the following categories: Family visits; Official business of the U.S. government, foreign governments, and certain intergovernmental organizations; Journalistic activity; Professional research and professional meetings; Educational activities; Religious activities; Public performances, clinics, workshops, athletic and other competitions, and exhibitions; Support for the Cuban people; Humanitarian projects; Activities of private foundations or research or educational institutes; Exportation, importation, or transmission of information or informational materials; and Certain authorized export transactions. Once you have a valid visa, you get on a plane.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "the difference between \"Innocent\" and \"Not Guilty\" in the legal system" ]
"Innocent" is not typically a term used in the legal system. "Not Guilty" means there isn't compelling evidence to find a person Guilty of a crime. The law only cares if you're found Guilty. If there isn't enough evidence, it doesn't automatically assign you as "Innocent" (because you might not be innocent...) it just means you are not yet found Guilty (and might never be found Guilty, depending on what kind of evidence there was to begin with - for example, it is difficult to be found guilty of a crime that happened somewhere you definitely were not at the time of the crime unless you were doing it via a proxy agent).
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How can the \"deep Web\" allegedly be so much larger than the surface Web if only a minority of people use the deep Web or hidden Internet." ]
It's a bit of a buzzword, and sounds more mysterious than it really is. The deep web is essentially anywhere you can access with an Internet connection but is not publicly visible without an account or some form of access control. Forum that requires registration, even free, to see content? Deep web. Passworded Minecraft server? Deep web. Your online banking solution? Deep web. Your Google drive, Onedrive minus what you set to publicly visible? Deep web. If you cannot see it with a Google search, then it's essentially part of the deep web.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How did people back in the day not realize that cigarettes were very unhealthy?" ]
There was a time when brands were endorsed by the medical profession. "More doctors smoke camels..." _URL_0_
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why can you use a negative adverb to make an adjective more positive? Ex: Awfully good" ]
The adjectives which spring to mind - awfully, terribly, dreadfully, frightfully, fearfully, scarily - all come from words related to fright. And this, I think, is because for many things we fear, that fear is mixed with respect - we both fear and respect the mighty power of nature; we both fear and respect a large predator; we both fear and respect whatever god we happen to believe in. So the comparison is being made with that - "He is a terribly good footballer" literally implies that he is so good that we must fear and respect his powers.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why are all of the bees dying?" ]
The short answer is we don't know. There's been a number of studies which have identified a higher amount of parasites and disease within affected colonies but theories are that these are just the symptoms of what lead to the deaths, not the cause. Theories about the cause range from climate change to pesticide poisoning to an unintended byproduct of cross breeding by beekeepers.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why isn't the immune systeme able to handle cancer, although I might now what the cancer is made of and therefore what parts had to be destroyed to kill the cancer?" ]
Immune system will react to anything that doesn't have the marker chemicals that identify it as part of the body. Unfortunately, cancer is when the cells in some organ in your body start multiplying out of control, due to a mutation. Thus the immune system isn't detecting anything because it just sees cells from an organ multiplying, which isn't abnormal (as far as the immune system is concerned).
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Differences between summer seasons on the North and South hemispheres" ]
you seem to be confused - the days do not get longer at just one end of the day. both sunrise and sunset get earlier and later at roughly an equal rate. the closer you are to the poles, the more drastically they change, and the closer you are to the equator the less they change. the graphs below help demonstrate this. go to the link, and slide your mouse along the big blue graph with the red line. underneath you will see the sunrise and sunset times growing and shrinking together. (those jumps near the beginning and end is when daylight savings comes in). i chose london and melbourne as the cities to use as examples, both relatively far north and south respectively. _URL_1_ _URL_0_
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "why you can set .gifs as background in windows 95 but not in Windows 7" ]
The reason behind this is called 'Active Desktop'. It's basically a function in the default internet browser called 'Internet Explorer' also made by Microsoft, just like Windows itself. It was basically a browser window without borders that would be layed over the wallpaper but under other stuff like desktop icons, so it could display search bars, websites and thus gifs, because they are animated when shown in a webpage. Active Desktop is a feature for IE 4.0 to 6.x . When Vista came around, IE 7 was introduced and the feature was removed from that version. That's why you can't have gifs as desktop wallpaper anymore. EDIT: a word EDIT2: why was Active Desktop removed from Windows? You may remember that Vista had a new feature called the sidebar with all those fancy widgets, so they felt no need to continue development on such an old technology and removed it. Those fancy widgets are now the desktop widgets on Windows 7.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "- Can someone explain the negative associations I'm seeing about the Red Cross and the recommendations for donations to be directed to other charities besides the Red Cross?" ]
Iirc, there has been multiple scandals coming up, originating from Red Cross. Charging people money for care (not recent but still applicable), and a lot of donor money missing, and not being spent on relief, as they were supposed to be. I believe during hurricane Katrina, only 4 permanent houses were built, and around 25% of the finished money was actually used for hurricane Katrina relief. Also, not 100% sure, but I seen posts on Facebook about the meals the Red Cross are currently offering in Houston, and they were very small. A few pieces of cheese, ham, and two cheap packets of crackers with a little bit more, for supposedly $8. Not sure if they're still corrupt, or if they every truly meant to be, but yours and everyone else's donations can go to a much better charity.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do humans seek familiarity like staying in the same house or bed but get bored of performing the same task over and over?" ]
As just stated, Safety is first, so comfort and familiar environment can last a long time until the person feels they can attain that same safety elsewhere. When it comes to tasks however, purpose and passion come in. To be useful or valuable, the brain wants to do something meaningful, creative, successful, etc., which usually means a variety. Some people do find their favorite passion and do the same thing for 20 years, but that’s rare to find.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "When making security questions for password recovery, why don't they let you write your own question? Wouldn't that be significantly safer?" ]
Not really. Imagine your average user - their password is probably "12345" or "password," and they probably have the same password everywhere. Now, imagine if that guy could write his own question. "What is 123?" Or "MY PASSWORD IS PASSWORD?" There is very little the site could do to protect people from simply giving away their password due to sheer stupidity. Not letting the user write the question prevents them from sending themselves a clue. My trick is that I have only a few answers. Whether it asks my mother's maiden name, my first pet or the name of the street I live on, the answer is always "Sasquatch." (Not really).
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What's the difference between ethanol that's in hand sanitizer and ethanol that's in different types of drinkable alcohol?" ]
Chemically, ethanol is ethanol. The difference is that ethanol that's "not for human consumption" is *denatured* so that it's unpleasant or poisonous to drink. Since it can't be consumed, it doesn't have the high taxes associated with liquor ($22/gal in my state).
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How does the immune system store information about infections that it has defeated? How is it able to \"remember\" diseases to produce antibodies?" ]
When the adaptive immune system (the part that makes antibodies) recognizes a pathogen and sets to work attacking it, most of a special kind of cell (a B cell) get turned into a plasma cell when activated which does nothing but crank out antibodies. A small number of the B cells will instead turn into memory B cells which sit around and wait to see the antigen in the future. When they do, they divide and make a bunch of plasma cells. There is also T cell memory, but that is a whole different monster
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Whats the nearest distance for an aeroplane to land after take off?" ]
The space that you need HEAVLY depends on the plane and how much it's loaded (a fighter jet? a bomber? an empty cargo with almost no fuel? a cargo completely loaded and every tank full? tail wind?) The point is: you need a certain amount of space to take off and a certain amount of space to land. If the landing strip is long "100" and you need AT LEAST "50" to take off (detach from the surface) and "50" to land and stop completely you are fine. But if your plane takes "70" to take off you need to decide if you want to abort the operation BEFORE you reach "50", otherwise you are forced to continue the take off procedure since you won't have enough space to land and stop. That's why there is a "non return point" during take off: if you are over a certain speed you won't be able to stop before the end of the tarmac.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What's the deal with these Obama Phones?" ]
There is a program to give poor folks phones. It is meant to make sure everyone has access to services like 911. It started a long time ago before Obama and applied to regular telephones. Later it started working on cell phones. This also happened before Obama. Now people call them Obama phones because of some political stuff and the fact that it is a catchy name. People with one get a limited number of minutes every month. The phones are actually paid for through a non-profit company and tax dollars are not used to fund them.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "how microwave presets like \"popcorn\" or \"plate of food\" know how long to cook the food?" ]
I think it's just a set time/power setting that has been determined by hardworking people wearing lab coats and a table with many bags of burnt-up or undercooked popcorn. /dream job.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why do we lose our sense of \"play\" as we age?" ]
Just a guess, but maybe it's a learning vehicle wherein we practice life skills. Once we've mastered them we no longer need to "play".
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What is 3D printing and how does it work?" ]
3d printing is a way to turn a 3d model on your computer into a 3d model made of plastic. You use your computer to either draw an object in 3d (the model) or borrow a model someone else has created. Then you use a special program to turn the model into a language your printer can understand. Once you transfer that model to your printer (usually using an sd card) your 3d printer gets to work. It takes these long spools of plastic (sort of like huge spools of yarn, only its a bendy plastic) and melts it into a really neat pattern. You can think of It like a pen leaking ink in a cool pattern. This pen is called the "extruder." Almost as soon as that melted plastic leaves the extruder it cools back down to room temperature and hardens again. The printer melts the plastic out in the exact shape you had on your computer and it cools almost right away.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "why is the ol sailor saying \"pink sky at night sailors delight, pink sky in the morning sailors warning\" so accurate?" ]
Pink or Red sky comes from sunlight going through clouds on the horizion. The saying works where weather mostly moves east to west so clouds on the horizon are likely to be over the viewer if they're to the east (ie in the morning) because they're likely to be moving west, rather than on the horizon to the west (ie in the evening) where they've either already passed over the viewer or have formed beyond the viewer.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "What is the nature of the relationship between the United States and Puerto Rico?" ]
Puerto Rico is an *unincorporated organized territory* of the US. Unincorporated means that rights granted by the US Constitution are not fully extended to citizens of Puerto Rico.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "How does slowing down time in a game work?" ]
You can stop time in a game by simply not updating the state of the world. Objects don't move unless your code calculates their next position and updates them so if you don't do that then nothing will move or change. You can run a physics simulation at normal speed by taking the time that's passed since the last frame and updating the position and motion of objects to match. To run the simulation slower you "lie" about how much time has passed. If you step the simulation forward 0.001s at a time when in reality you're updating every 0.01s then it will appear to run ten times slower. The code doesn't care, it's just crunching numbers.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Most mammals with bald areas have them around the crotch and stomach. Why are we the opposite?" ]
According to this _URL_0_ It's because when we split from primates having a bush was sexy. The bigger the better.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "Why does being hit in the face hurt more that being hit in the rest of your body?" ]
One reason for it is the increased amount of nerve endings in your face. You know how you can feel it if there's a hair touching your lip, or any subtle touch for that matter? Now compare that to a body area like your back. Nerves there are less dense and more spread out, so you might not feel a touch if it is light enough. If you google the word "homunculus" you will get a picture with body parts that are sized proportionate to how well they can feel things. So you'll notice that things like lips, hands, tongue, and genitalia are all very large. These are the parts of our body that are best at discerning the tactile stimuli in our environment. That's a long winded way of saying that our faces have a lot of dexterity and high perceptive properties, so it hurts if somebody punches you there.
[ "Provided a user question, retrieve the highest voted answers on Reddit ELI5 forum", "how did Chromecast become so huge and popular? It is pretty much the go to standard I see in most apps no matter if it is android or iOS." ]
It costs 35 dollars and have basically zero setup or learning curve.