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Archived threads in /sci/ - Science & Math - 143. page
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Was the 1940's nuclear trinity test bad for human health?
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google 'john wayne fallout'
>>
>>8355975
>Among the cast and crew who filmed the 1956 film The Conqueror on location near St. George, Utah, 91 developed some form of cancer at various times, including stars Wayne, Susan Hayward, and Agnes Moorehead, and director Dick Powell. The film was shot in southwestern Utah, east of and generally downwind from the site of recent U.S. Government nuclear weapons tests in southeastern Nevada. Many contend that radioactive fallout from these tests contaminated the film location and poisoned the film...
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>>8356735
>Winds routinely carried the fallout of these tests directly through St. George and southern Utah. Marked increases in cancers, such as leukemia, lymphoma, thyroid cancer, breast cancer, melanoma, bone cancer, brain tumors, and gastrointestinal tract cancers, were reported from the mid-1950s through 1980.
https://en.m.wikipedia.org/wiki/Nevada_Test_Site

So that's a yes, then.

Could this be the root cause of the cancer boom of the 20th century? People spent too much...
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Is lucid dreaming a real thing? How does it work? How much control do you have? Can you control what you dream of? How close can you experience things?

I mean memory is pretty abstract or not for most people. I know what a car roughly looks like, I can recognize it but I wouldn't be able to make an accurate drawing or 3D model. So how accurate would a car be depicted in a lucid dream?
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Hard to explain, but basically yes to all of your questions. And it's as good as you can concentrate/have the patience for.

Try to be very relaxed in bed with no outstanding tasks or chores. Then close your eyes and count in your head "1, I'm dreaming, 2 I'm dreaming, 3 I'm dreaming" etc... up to 10 and then repeat.

In 5-10 minutes the blackness you see will turn into an image and you can begin doing whatever you want. Just keep counting and saying "I'm dreaming" in your head the whole time.
>>
>>8354811
its not that easy, especially if u have a hard time going asleep
>>
>>8354815
Well get your sleep problems solved, and you can move on to lucid dreaming. Run before you can walk and all that.

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woah
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really makes you think
>>
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>mfw trying DMT and the machine elves explained to me how each human brain contains its own universe
>mfw the many worlds interpretation is real
>>
>>8359111
To turn this shitthread into a good thread: What is /sci/'s opinion on the idea that we may be to the world as neurons are to our brain? Could we be "part" of a consciousness?

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What are the chances evolution is real?
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50/50, either it is or it isn't
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>>8364726
Statistically or religiously?
>>
>>8364726
Evolution has been observed directly, there is no chance of it being not real.

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What if there is a gene for "curiosity" and Africans somehow lack it, causing them to be content with sitting in mudhuts for millenia instead of exploring and discovering?
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considering they reproduce more they probably want their species to develop. They will probably be more curious when on our level.
>>
Africa is, in parts, an incredibly rich continent. Even if you start farming (in some areas, why bother when there's an inexhaustible supply of animals to kill?) the central regions don't have a harsh winter which would force you to store produce.

Once you have to contend with 6-3 months of the year when you can't grow shit then developing a civilisation becomes a necessity.
>>
There is evidence to suggest that subsaharan africans are genetically predisposed to having lower IQ due to much less frequently possessing several alleles.

In addition I believe in the future I think it will also be discovered, unless political forces shut down research into the matter that they much less frequently possess genes related to being able to delay gratification.

Delaying gratification is crucial to developing good study and work habits and is probably one of the most important things needed for a country to develop.

Furthermore I believe there's...
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How bad for you is it to have a ~250 kcal serving of sweets a day? How about once a week? Assuming you exercise and your diet is good otherwise.
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>>8360274
no matter how you cut that cookie its bad.

stop eating them fat fuck.
>>
>>8360281
You think only fat people eat sweets?
>>
>>8360281
Shut up, you don't know what you're talking about.

Calories don't matter. Well, it does, but everything in moderation. You'd still have to check for sugar and all that shit, but as long as you're hitting your macros you should be okay. If you're serious about it, calculate your TDEE.
Assuming you do exercise and your diet is a variety so you're getting other nutrients, you should be good. I eat whatever the fuck I want but I'm pretty fit so it doesn't matter what...
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What's the point in becoming a scientist, really? It is totally thankless. I'm being serious here.

>Only the people from the top prestigious schools get the interesting research or professorship
>You get paid like shit unless you are a tenured professor, again, better graduate from harvard to get one of those professorships because people only care about prestige rather than ability
>there simply are not enough positions, don't buy the "STEM shortage!" meme,...
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>>8356726
>don't buy the "STEM shortage!" meme

When people say 'STEM shortage' the last thing they are talking about is research.

They are talking about fucking code monkey jobs... and even then they are wrong.
>>
What should I do instead? Sweep the streets? Lay brick for a hundred dollars a day?

Even being an adjunct professor for like is pretty damn comfy all things considered.
>>
People who hire STEM majors as fungible replaceable brain-slaves, and pocket the difference and make a shitload, become rich. STEM types are just too naive to understand that this doesn't mean THEM.

There is zero glamor in science, just working like a dog as a virgin loser to make Chad MBA richer.

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>mathematical genius, child prodigy
>becomes a religious nut makes up the highly illogical pascal's wager

its a shame
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Evariste Galois

>Dying in a duel for a 3DPD
>>
>>8359620
but was Galois even good to begin with?
>>
godel starved to death because he was scared of being poisoned

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>there are people who unironically believe being skeptical or criticizing man made climate change should have you black listed and disqualified from talking about it

How did we reach the point where people started to think "I'm so right that you're not allowed to question how right I am or else your opinion is irrelevant" is proper science?

Is this not the most anti scientific sentiment accepted in the scientific community?
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it started with holocaust denial

both are disgusting limitations on free speech
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>>8360342

>be in australia
>dont have any formal legislation regarding free speech etc.
>thank fuck for that

literally don't have to listen to your fucking bullshit, you genuinely don't have the right to harp on about how the earth is flat etc., noone has to listen to you

another example: hate speech will probably get you punched in the fucking face before it makes some SJW cry

Gotta love a sunburnt country ;)
>>
>>8360315
But every study that tries to link climate change is doing exactly that, questioning AWC. It's just that their results are not the ones YOU personally want, so you probably dismiss them as part of a global conspiracy of climate scientists.

>The Planck length is the smallest distance

When will this meme die?
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>>
You can kill a man. But memes are bulletproof.
>>
>>8363256
>The Planck length is the smallest distance
>When will this meme die?

You have an alternative?
Please explain
>>
>>8363256
When you stop repeating it

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Redpill me on the multiverse
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Nobody?
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>>8361113

There's nothing really to say about it other than its a meme theory
>>
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Lol

Its bannannas

What is it like to have an IQ of 85?

If you attended a selective school (public or private) and attended an elite university before going into a professional career, it's quite possible that you have never had a good friend - or even more than an acquaintance - with an IQ of 85. You may meet them in passing; they might be serving you in a fast food restaurant or cleaning the halls outside the library at Harvard, but you're not really interacting with them. You don't get to know them.

What are they actually like in terms of their thinking?

When...
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>>8360402
>>
Met plenty of them during my blue-collar internship.
Goddam they were fucking boring. Mature men who cared about nothing but the latest football results and big cars.
>>
>>8360434

I'm not reading all that shit.

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Come on dude..

really

REALLY????
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>>8361771
what?
>>
See, if the moon was that big and close to the earth, it would fall. Also, if the earth was flat, why cant i see Austrailia?
>>
>>8361778
You need really good binoculars

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>read all over the internet how cal 2 is super hard and it's the hardest calculus
>take first cal 2 test today
>easy as shit
>all my friends thought so too
>I go to a good uni (UT) so it wasn't easy because it's a trash school

The fuck? Is cal 2 a meme class? Are people retarded? Does it get harder? Someone explain this shit to me
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We'll look into it. Could be a problem with our instruments.
>>
>>8361382
>UT

What the fuck is it with plebs thinking anyone knows their shit tier university just from initials?

UT - University of Tampa? University of Tennessee? University of Texas at Austin?

Fucking ameriplebs
https://en.wikipedia.org/wiki/List_of_colloquial_names_for_universities_and_colleges_in_the_United_States
>>
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>>8361440
The only relevant UT obviously.

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Does anyone have an actual refutation of stuff like quantum consciousness and other stuff these Noetic Science people push?

Everyone that I ask just gives me the whole "its woo even though i dont know shit lol" routine, and it's retarded. It's almost as if "woo" has become a new meme, so I'm just betting it hasn't reached /sci/ (yet)
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>>8360060

Noetics IS woo, notice how almost every important physicist was/is an atheist?
>>
>>8360065
>notice how almost every important physicist was/is an atheist?

Actually the majority of important physicists have not called themselves atheists.

>Newton
>Einstein
>Maxwell
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>>8360065

so does the existence of christian scientists prove noetics isnt woo, you daft little shit?

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I already went to the psych he just diagnosed me with depression and anxiety which are known adhd comorbidities. He even asked me if I was failing school, I'm just very good at testing, my mind works just fine when it's motivated by extreme fear i.e. I have been absent from class all semester and failing all courses. So according to my dr. I don't need drugs except lexapro (seriously why prescribe ritalin when you can get me addicted to anxiolitics), and I really don't wanna self-medicate. Can you deal with this shit without drugs?
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>>8358665

i've been going damn well, constantly either drunk, stoned or coffeed up to the eyeballs.

>anxiety, depression, mild bipolar, mild aspergers, PTSD

you will be ok anon
>>
>>8358665
>anxiety
>depression
Yes. I got rid of it:
- Stopped eating shit
- Starting doing exercises
- Sleep 7 hours
- Everything related with my past "life" is mostly removed. (Dota, WoW, Pokemon, etc)
- Working for my dreams and goals

But you are a special human, you are too complex and superior to be affected by your nutrition, mental and physical habits and sleep time. Right?
>>
bump
How to get adhd medication?

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Roll a 100-sided dice.
95% chance you get $35,000.
5% chance you go to jail for 2-4 years.

You can play this game as often as you like. Is this game worth playing? How many times a year would you play? Is the EV positive?

>pic unrelated
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>>8356220

and no this isn't a freaken homework question, it's just something i've been thinking about for "reasons"

and I know the "EV" can't really be computed, unless maybe you factor in "lost wages" due to jail?? meh, my autism
>>
>>8356220
I'd play, probably not more than once or twice though
>>
On average, you expect to roll 20 times before going to jail. So you win 19*35,000 = $665,000, on average, for every jail sentence of 2-4 years. Sometimes you will win much less than this, and sometimes you will win much more.

To answer your question, you simply have to ask yourself whether an average return of $665,000 is worth 2-4 years of jail time. This is a personal question and there is no wrong or write answer. For a father of four who can't put food on the table, it may be a no brainer. For a person who is making ends meet, it might be a ludicrous proposition.

Also for a person who is in a financial emergency that would be completely solved with $35,000, it's likely worth the risk. Especially if it's a medical emergency.

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that he took credit for it....

what stuff did he actually do that many praise him for?
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Known for:
Abelian von Neumann algebra
Affiliated operator
Amenable group
Arithmetic logic unit
Artificial viscosity (a numerical technique for simulating shock waves)
Axiom of regularity
Axiom of limitation of size
Backward induction
Blast wave (fluid dynamics)
Bounded set (topological vector space)
Carry-save adder
Cellular automata
Class (set theory)
Decoherence theory (Quantum mechanics)
Computer virus
Commutation theorem
Continuous geometry
Direct integral
Doubly stochastic matrix
Duality Theorem
Density matrix
Durbin–Watson...
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>>8355814

Was his day basically all math?
>>
while its true that the architecture wasn't really his work, but he did have a role in implementing in a computer for the first time I believe, and promoting it

even so, he still literally invented game theory, with that singular achievement he would already be in the annals of math history, he also did a bunch of other stuff (read the first post)

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what are some /sci/ approved antidepressants? i want to not feel like killing myself anymore, but not at the expense of my motivation (which, due to depression, i don't have much of anymore)
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The only antidepressant is time
Eventually it doesn't hurt anymore. Probably because you're dead.

Alternatively, do cocaine and get laid.
>>
>go to doctor
>"I'd give you antidepressants if you had a dumb job but as a PhD student you actually need to use your brain so it would be detrimental to your performances"
>"I can give you anti-stress pills, but they basically do nothing"
wew
thanks doc
>>
>>8358348
>tfw I can't get hard when I do blow

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How do I find if these two converge or diverge, you don't have to give me the full answer just at least guide me by telling me through what test.

[math]\sum_{30}^{\infty}(\frac{1}{lnn})^{lnn}[/math]

And

[math]\sum{2]^{\infty}(\frac{1}{(e^n+1)})[/math]
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>A rock is tossed straight up with a speed of 22 m/s When it returns, it falls into a hole 10 m deep.

how do i find the final velocity as it hits the bottom of the hole?

i know this is a retarded question, but the formula vf^2=Vi^2+2a(xf-xi) doesn't get me the right answer
>>
>>8355088
You first have to find out how far up the rock goes, then add that length to your 10 meters and then do the calculation.

Use
s = s_0 + v_0 * t + a * t^2
to find out how far up the rock goes.
Then add the 2 lengths and use that same equation for finding out how long it takes the rock to fall down to the bottom og the hole.
Then use
v = v_0 + a * t
to find out the final velocity of the rock.
>>
>>8355059
p series

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Why can you get any college degree without learning real analysis? It should be a gen ed requirement. Why is it only the humanities that get to have those?
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>>
Math has gen Ed requirements in college algebra. If real analysis was required to get a degree, then humanity departments wouldn't exist because they wouldn't have any graduates and no funding
>>
>>8359518
Possibly coincidence but are you just saying "if real analysis was required" because that's what your currently taking?
>>
>>8359518
>college algebra
is that like group theory or are Americans non-ironically learning elementary school math in college?

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I constantly hear shit about how unhealthy fastfood is, but aside from HURR DURR IT MAKES YOU FAT, there is not even a trace of a single fact or argument.

So, let's settle this once and for all: WHAT IS UNHEALTHY ABOUT FASTFOOD AND HOW?
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>>8355996
It has a very high amount of fat, sugar and oil
>>
>>8355996
it's not

the problem isn't with the food, but with the actual person
>>
>>8355996
I constantly hear shit about how unhealthy Zermelo–Fraenkel is, but aside from HURR DURR IT'FAILS TO CAPTURE OBJECTS SUCH AS PROPER CLASSES AND THE UNIVERSAL SET, there is not even a trace of a single fact or argument.

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had a understanding of General Relativity before Einstein?
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>>8355125
No
>>
they didn't even understand the concept of gravity at that time
>>
>>8355125
Unknown and can't be verified or disproved. It is assumed they did not.

>pic
>congo blacks in Egypt

lol

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What are the best ways to improve your intelligence?
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>>
First, moderate humility with open-mindedness

Then, you need to have sufficient dopamine and endorphins to actually do fucking learning and work

Then, read books everyday, read philosophy to supplement your STEM learning, interact with academics but don't get caught up in their authoritarianism (I said it's this way so you must believe me)

God I don't know it's pointless anyway

Smoke weed occasionally to expand your mind meme, but it actually does
>>
>>8356880
>Smoke weed occasionally to expand your mind meme, but it actually does
But it causes paranoia senpai.
>>
>>8356885
Maybe a little paranoia is needed to balance out naivety

Many times I have been told by therapists and "experts" that my thoughts were irrational and negative. Then my "irrational" thoughts would be proven true and the bad thing would happen.

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Ask a cognitive neuroscientist anything. I'll do my best to get to all the genuine / interesting questions as soon as possible, but I'll prioritize accuracy over speed.
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>>8356515
Do you think sentience could be derived from consumption of psilocybin during our "consciousness" evolution 100,000 years ago?
>>
>>8356525
I don't have evidence to the contrary, but there is none to support it either. Except perhaps for the observation hardly any species consume psilocybin containing fungi, including our close relatives. I doubt that it played any major role.
>>
>>8356515
>recently, the conclusions of thousands of fMRI based studies are called into question b/c some faggots can't into statistics or coding or something

?
pls address the issue

Recently read this book and i gotta say this guy is a geniuss. Somebody think he will succeed in his quest to Mars?
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>>
I find it hard to imagine how he wouldn't
Tesla and SpaceX are not going to suddenly go bankrupt, and he'll be spending all the profits on the shit he wants, such as going to mars.
>>
Sure but would it not be saver to like go somewhere closer first like the moon.
>>
Amber heard is gonna still steal all of his money and spend it on makeup

A vapid Stacey will be the thing between humanity and Mars.

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Is this pseudoscience or legit?

As you can guess, I never took a biology class.
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All human DNA are within .04% points of similarity to each other. If there is truth to it this it would be hard to fucking tell because other animals like those birds or with dog breeds don't come near that close.

Personally I just blame poor people.
>>
>>8345977
Yes, it's right. And no, is a not a conspiracy that "hide" that fact, is just too much of hot topic to get into
>>
Pseudoscience. The only other species in your pic is abbos, the rest are all homo sapiens sapiens.

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>>>/qa/668450
>>>/qa/670512

Hiro said that we can make a constructive thread discussing our issues with /sci/ that mods will not delete or set to autosage.

Will /sci/ ever see the return of math & science related captcha questions?
Will mods & Janitors better regulate the posting of popsci, health, and >>>/x/ related threads?
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>>8352021
>3 days ago
Hiro's gone m8
Anyways, /sci/ luckily is one of the better boards on 4chan, probably because most /pol/tards and shitposters don't bother going anywhere near something more advanced than the quadratic formula
>>
???
>>
Can /sci/ mods start deleting uni threads?

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I Personally believe that Maths is Invented, for the simplicity of science communication and technology.Unlike other subjects, Maths doesnot have a physical form as such.
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>>8357080
Neither, it was a gift.
>>
>>8357080
It depends on the type of maths.

For example, take an identity like
[eqn]\text{sin}^{2}\;\theta+\text{cos}^{2}\;\theta=1[/eqn]
This would have to be discovered, sin and cos always had this property, so it couldn't be invented.

However, take something like a complex numbers. These didn't necessarily exist in maths before, so they were invented.
>>
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>>8357080
invented

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What if you ate a tiny cube with no nutritional value, except 20,000,000 calories? Would you just slowy gain fat over time? Would you just die? C'mon /sci/
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What?
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>>8352849
define nutritional value
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You'd probably burst into flames


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