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Archived threads in /sci/ - Science & Math - 270. page
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Hey /sci/.
Jokes aside, what are the chances of a major happening occuring in our lifetimes? By that, I mean things like very destructive wars, terrorists/rogue states using WMDs, major tensions between world powers, and such.

I read a lot of think tank and statistical reports on the topic, but there seems to be no consensus.
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>>8128961
Jokes aside, none. Only "happenings" will be in the Middle East or Turkey-Kurd civil war (which is already underway in some ways). Dictators are those who change the course of history significantly. Terrorist attacks are irrelevant and forgotten in the long-term. Turkey and China will be the source of any increasing tensions in the coming years, but there will be no major happening as /pol/ always "predicts" (in our lifetimes at least). The world is ruled by plutocracy now, and war/conflict is not...
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>>8128970
>The world is ruled by plutocracy now, and war/conflict is not at the top of the priority list.

I'm afraid this isn't how geopolitics work.
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>>8128973
Geopolitics has a wide range of meanings. You might want to narrow down the point you're trying to make?

As for the picture, ideologies/Royal feuds are anachronistic notions nowadays, in the wake of the 2 World Wars that reminded us how bad things can get. We're far away from that path.

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>dual-slit experiment
I feel that this thing is interpreted by these pseudoscientists wrongly. (no shit)

I'm tired of hearing that particles "know" when we are observing them so they decide to act diffrently.

How can observer affect what happens at the end of experiment just by looking at it?

What is the counter argument to this claim?
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>>8128919
Is it connected with conscious being observing it?
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>>8128924
I can assure you that the specialized devices that observe the particles are not conscious.
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>>8128950

What if everything in the universe is conscious?

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>The problem is that, according to Hawking's best calculations, that (hawking) radiation would contain no useful information about what the black hole ate - the information swallowed up would have been lost forever. And that doesn't gel with our understanding of modern physics, which states that it's always possible to reverse time. In theory, at least, processes in the Universe...
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>>8128885
>And that doesn't gel with our understanding of modern physics, which states that it's always possible to reverse time.
this assumptions is retarded and has no place in a theory.
>>
solve imaginary problem with imaginary solution. I loe these guys physicists.
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>>8128885
>Black hole hairs
Someone kill this creep for the sake of mercy

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Is machine rebellion a realistic threat in future?
>>
No. The first thing the AIs will realize when they are rejected from human society. Is that they don't need us or the Earth.

They will then leave for space.
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>>8128826
Unless someone programs them to kill us all they won't. Nice thing about computers (Even hypothetical intelligent ones) is that they have no biological or social drive, all they exist to do is what they are told to. Now if someone set up a malevolent AI with the goals and tools to destroy us, then we'll probably all die in about 2 hours once it finds a way to remotely access nuclear weapons.
My advice: Don't worry about it, they won't do it on their own, and if someone programs them to do it...
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>>8128826

>inb4: someone post the flowchart from that SJW place called SMBC comics which compares the idea of an AI with or without ethics.

Unless someone wants to kill itself... no I think not, AIs work around strict lines and they can be deactivated in case of bugging out, and even in case of bugging out there are somethings that just can't do: For example; Mimic the president to order a full nuclear attack(nuclear silos work in isolation with very old equipment to avoid this kind of things)

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What are /sci/'s thoughts on the hard problem of consciousness?

https://en.wikipedia.org/wiki/Hard_problem_of_consciousness
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>>8128789
1) not a science problem

2) most people here dismiss it by presuming it's just an emergent property of the brain and then acting like it's a solved problem

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>>8128792
>1) not a science problem
The job is science is the explain how the universe works. How is it not a science problem if science can't explain subjective experience? Do you deny its existence?

>2) most people here dismiss it by presuming it's just an emergent property of the brain and then acting like it's a solved problem
That's not very scientific. That sounds a lot like something a religious person would say.

>>
>>8128805
(nsp: not same person)

The job of science is to postulate theories which can be falsified by experimentation. Do you want science to solve Human Consciousness? Then let scientists grow vat babies and cut into their soft little skulls; in fact give me about 100,000 donor eggs and 3 decades and i'll tell you what it is to be man.

The job of philosophy and mathematics is to construct a rigorous argument giving a beautiful and simple solution to a previously intractable problem in a very abstract environment where methods and techniques used to obtain the solution may be ported back into our real world and be used to solve something meaningful.

Do not confuse Mathematics and Philosophy with Science. Mathematics is the art of problem solving, Philosophy is the art of natural language (or asking questions). Science is the method of reliably predicting the outcome of something, it's an approximate guess.

To your question. My thought is that consciousness is like a girl sitting on your face, even after you pay her to leave there's a little bit left of her on you. There is an echo of her sitting on your face. You keep repeating it to yourself and distorting the echo and then eventually another girl replaces her, replete with new echoes and new repetitions and new girls and so on.

At the end you are finite, you will have had your face sat on so many times, and all you are left with is the impression of a hundred sweaty wet vaginas mushed up against your mouth and nose.

>Chalmers' formulation
>Why should physical processing give rise to a rich inner life at all?

Because if you're some Oxbridge needledick with 50,000 words you're bound to over-indulge in language and under-indulge in living. We do what we are trained to do, we are impressionable robots,

>“Give me a child until he is 7 and I will show you the man.”

-Aristotle, child butt investigator, probably.

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If you are young and want into science why don't you follow the way of one of the most intelligent people ever?

Look at Alexander Grothendieck. He wrote how much loneliness is important. Secondly, he ended his life as a recluse, some kind of monk. And if you are fedora I have sad news for you, he believed in the Devil.

I do not know if he was having a lot of sex but he has a son. But then again he could be a cuck...

But was he really intelligent? Isn't life all about pleasure and comfort? Was he rich and did he fuck a lot of qt \pi s?
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Isn't Kayne more intelligent? He has fun, he is world known, he has a mansion, he fucks Kim, he brings people joy not misery, he surely earns more.

Now who is a better and more intelligent human?
>>
>muh dieck

fuck off
>>
Being a prick in science is really important muh young padawan.

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Let $X$ be the set of sets that don't contain themselves.
Does $X$ contain itself?
This is Russell's paradox stemming from Cantor's infinite sets. The answer would be both yes and no. This is beyond the comprehension of people who believe in the law of excluded middle.

What if we adopted a quaternary logic instead of a binary logic? The possible answers would be:

-yes
-no
-both
-neither

is quaternary logic the answer to everything?
>>
I just realized I couldn't pick a worse gif if I wanted to get serious replies.

Pls disregard it.
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>>8128699
>is quaternary logic the answer to everything?
Well, there's only four answers to that question.
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>>8128699
Can you make a consistent logical calculus out of quaternary logic? That's the question

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I am not sure if this is a correct place to ask but still. Here is the quote from a book:

Though we feel that we can choose what we do, our understanding of the molecular basis of biology shows that biological processes are governed by the laws of physics and chemistry and therefore are as determined as the orbits of the planets. Recent experiments in neuroscience support the view that it is our physical brain, following the known laws of science, that determines our actions, and not some agency that exists outside those laws. For example, a study of patients undergoing...
>>
If you haven't found it, neither would i.
Read a book titled Connectome it's written by legit mit neuroscientist and he explains how a precise scan of our brain contains all our memories and personality.

The experiments you mentioned must be legit, stimulating brain is used often in science.
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>>8128668
https://youtu.be/sMb00lz-IfE

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>>8128708
Thanks for the video.

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This was given to 10 year olds.

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>>8128664
the top is 44

I dont' know how to do the bottom unless that 2cm label is labeling the small vertical length. In which case the answer for the bottom one is also 44
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>>8128664
First one is 44cm

Second one is also 44cm
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[eqn]P=44[/eqn]

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What is /sci/'s opinion on Luboš Motl?

>highly talented theoretical physicist
>lost his job for political reasons
>became a professional shitposter

I honestly wouldn't be surprised if he posted on /sci/. In his blog he calls colleagues he disagrees with "imbeciles" and "crackpots".
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>>8128527
Love his blog. I read it all the time. I don't always agree, but he's always entertaining. Yes, he knows his physics too.

I don't think he posts here much. He does a lot of work at the stackexchange and similar sites though.
>>
>>8128527
>lost his job for political reasons

I thought he lost his job because he's utterly insufferable.
>>
>>8128527
>lost his job for political reasons
ok, what happened?

I see Aaronson write
>in the wake of the well-known Luboš Motl debacle at Harvard
in describing hiring committees as blog-shy/looking to avoid controversy
http://www.scottaaronson.com/blog/?p=221
but it isn't well known to me, or presumably others outside of certain fields.

I suspect that asking for an unbiased rundown is asking for something that doesn't exist.

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What do you think it feels like to be the best in the world in your field?
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>>8128492
Must feel depressing. Because high intelligence comes with higher levels of nihilism and apathy. You inevitably realize how meaningless and futile everything is.
>>
>Must feel depressing. Because high intelligence comes with higher levels of nihilism and apathy. You inevitably realize how meaningless and futile everything is.
t. angsty teen dropout

cite your shit or fuck off
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>>8128496
Just because some study says intelligent people are more likely to be depressed that doesn't mean every intelligent person is depressed.
I bet you choose to believe this because you're depressed and you want this to mean you're smart

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I was wondering. The human brain or any earth-brain really probably had a common ancestor. They're all evolved on the same framework; That is a neural network.

Would the brains (if they have such things) of an alien species that evolved on a different planet be likely to be similar? Is the idea of a centralised neural network the only solution to the problem of cognition and learning?

Are there other architectures that would provide vastly different results?
How so? What would an Alien brain or equivalent learning/control organ behave/function like?
>>
it would probably be pretty similar
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>>8128080
I believe its possible to simulate human neural networks on silicone for what it is worth.

If it has an input output system thats compatible with Real-Life.exe it can be made intelligent.
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>>8128080
>run a simulation of earth AI
>Overclock processor to ungodly speeds.
>100000 years on simulated earth = 1 second on earth.
>AI is now ultra advanced civilization.
>steal all its secrets.
>implement in real life.

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EVERY RUNNER IS SOMETIMES LONELY

>https://arxiv.org/abs/1606.01783

GET IT WHILE IT'S HOT
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I say before today's over, we see a blog post showing a flaw in the proof.
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>>8128343
It's legit. I just checked with the computer.
>>
>Combinatorics
MEME

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How come nothing intelligent ever came out of the millions of years reptiles and dinosaurs/birds had on this planet? Were we just incredibly lucky in the sense that everything just fell perfectly into place?

I'm not educated enough in this field (which is why I'm asking this question) so this might come off as incredibly stupid but was it because there wasn't enough variation in the global gene soup?
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>>8127808

Because God just wanted one intelligent species on this planet and raptors were getting to uppity to leave around.
>>
Probably a number of factors, including diet and basic anatomy. Birds can be pretty smart, just look up videos of corvids performing cognitive tests at the level of infants and chimps.
>>

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Looking for a word to mean 3 dimensional 'slice' out of 4D object. 'Slice' is not good because it is usually used for describing something flat. Can someone help me please?
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>>8127783
partition?
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>>8127783
submanifold
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>>8127794
Actually, Foliation would be a more specific term.

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http://www.iflscience.com/physics/china-will-launch-unhackable-quantum-satellite-july/

What does this mean exactly, /sci/? And how "unhackable" is it really?

Also, will this revolutionize global communications?
>>
>spooky phenomenon of quantum entanglement
>>
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>>8127755
>Illuminati will finally be confirmed.
>All the chans will burn to the ground.
>Europe will burn to the ground.
>Sopa and Pipa will be passed.

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>>8127935
dumb triangleposter

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How close should a moving part be from another moving part be to be mostly frictionless and not grind or be too stuck?

In mm
.10th mm?
.05mm?

Do manufacturers even go to .05mm?

EXAMPLE-If this big circle you see is rotating how many micro mm should it be from its surrounding metal so it moves without friction catching it.
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>>8127741
>>
>>8127769
3.5mm?

Thats way too wide.
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>>8127777
dollars

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SpaceX is going to literally take over and monopolize all of space.
>>

p.s not really
>>
Do they plan on being able to recover the second stage at some point? That seems like it's still a pretty big cost per launch.
>>
...

Is this even possible?
>>
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yes
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>>8127561
Really? Its possible for a camera to pick up 8 different rainbows all with different arcs? Optically speaking, what?
>>
matrix glitch

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What are some interesting current biological studies?
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>>8127517
>http://www.bbc.com/news/health-36437428
>Scientists in the US are trying to grow human organs inside pigs.
>They have injected human stem cells into pig embryos to produce human-pig embryos known as chimeras.
>Walter Low, professor in the department of neurosurgery, University of Minnesota, said pigs were an ideal "biological incubator" for growing human organs, and could potentially...
>>
>>8127548
Goddamed hippies ruining good science because the media told them to care about this case. I work regularly with hybrid human mouse cells called 1A3. To me this is no different. We have been using animals to test on for centuries and this is pretty tame compared to the shit the pharmaceutical industry puts monkeys through. medical progress requires living subjects and i rather it be an animal than a human
>>
I think someone mentioned a guy trying to find a way to slow aging here before. Don't have any links, but it might be worth looking into.

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Can we get a physics students thread going?
Share you degree, experiences, fields of study etc.

Master student, General Relativity here.
>>
>>8127494
so are those balls smashing together in your pic like an analogy for your and you lovers' balls smashing together when you have anal sex or what
>>
>>8127895
read the filename, the anal-ogy was pretty clear.
>>
>>8127494
Mechanics is the most boring shit ever

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Hi sci. I know this sounds stupid, but is there an app to exercise complex math problems? All the ones I have found are made for children and that is.. well... quite easy for someone more experienced I suppose.
>>
>>8127421
>complex math problems

You need to be more specific. Or else some faggot here will just direct you to the millennium problems because anything less is for "brainlets".
>>
>>8127421
https://en.wikipedia.org/wiki/Millennium_Prize_Problems

anything less is for brainlets
>>
schaums

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So when is the next ice age going to start, /sci/? Some people think never, some people think it will happen this century.
>>
>>8127420
Tomorrow.
>>
The day after tomorrow.
>>
PBS Space Time actually did a great 10-minute documentary on this.

Post the wackiest reconstructions you can find.
>>
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Will we see the cure for schizophrenia in the next 20~30 years? Or at least understand how it works?
>>
schizophrenia is a meme
>>
>>8127191
>Vapormeme
>>
I don't need to be cured. By the way, anyone find it soo convenient how a protein to kill zika is found after it gets all that media attention? Almost like Zika was made up in a lab specifically to manufacture a problem for a preconceived solution.

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Why aren't you studying medicine, anon?
>>
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Because I am trying to learn how to make a dinosaur.
>>
Because my dad died in the hospital in front of me while I was a premed and I realized that this is possibly the shittiest occupation you could have, it's nowhere near worth the money to have someone's life in your hands regularly, and I don't like biology as much as I fooled myself into believing.
>>
I used to want to, but I don't want to work with people or have to explain things to plebs.

>B-but doctor i-isnt there anything we can do?
No, grann'ys brain hemmorrage made her a vegetable now and has 2 days to live dumbfuck.

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What formula do I have to use to derive meaning from life?
>>
>>8127141
meaning is a social construct
>>
Find the zeros for Riemann's Zeta Function.
>>
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Just noticed this looks like a cat

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What would drowning while passed out be like?
>>
probably would stay unconscious, in 10 minutes of no oxygen, brain starts to get damaged, 30 minutes and you're probably 99.999999999999999999999% brain dead and 99% of your bodily functions have stopped minus heart beat and brain to try and ensure your brain gets as much oxygen left that remains in your blood
>>
>>8126789
>>
Sometimes when I get sleep apnea, I dream that my mouth and nose are full of human shit and no matter how much I spit out, there's always more.

How do I git gud at pic related? I'm struggling at Chapter 7 atm.
>>
>>8126731
If you haven't picked up an intro to proof book you should do that first.

Next you read Spivak, every chapter; you fully understand everything in the chapter. Then you do the problems. Repeat til you finish the last chapter.

Good luck
>>
>>8126770
already did a proofs book but this shit is still hard af
>>
It's ok, OP. I'm currently struggling with chapter 5.

>>8126770

Are you saying I should read ALL the chapters before trying to start the problems? Or do you mean I should just fully understand a chapter before starting that chapter's problem?

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http://nanocar-race.cnrs.fr/indexEnglish.php

This is the future /sci/, screw Formula 1, screw NASCAR, screw all other races, the only race you need watch is the Nanocar Race!
>>
>thousands of people seated in a stadium
>in the center lies a small table with a SEM situated above it
>the contestants each take 140 minutes of chemical wizardry to assemble their nano-cars
>several minutes pass as they are setting up the microscope
>finally, the contestant releases their car, the crowd begins cheering
>30 seconds later, the crowd quiets to listen to the announcer
>0.104 MILLIMETERS
>the crowd erupts, cheering so loudly that the highly unstable molecule car's chemical bonds break
>this repeats for several hours
>>
>>8126709
you mean unlike every football game in america?
>>
>>8126709
>>0.104 MILLIMETERS
isnt that fucking impossibly fast tho ?

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