Time travel into the past is impossible because we're living in an ever-changing present. Correct?
>>8642324
Non sequitur.
>>8642330
Meaning time travel into the past is impossible but not because we're living in an ever-changing present? Or time travel into the past is impossible but we're not living in an ever-changing present? Fuck
>>8642324
BR ratio of 1
Welcome to Humanity. Would you like to pick a name for yourself?
IQ doesn't mat-
>doing well academically is a strong predictor of doing well academically
really makes u think
>>8641872
>income
>>8641880
>if you are doing well in school you have a small chance of obtaining high declared income
Saw this awesome video on Alphago strategy. It goes into detail eventually on the fact that Alphago does non-ideal moves in an effort to simplify the board state. The thing is by simplifying the board into easier to digest small sub-battles it can use it's strengths of montecarlo analysis to find ideal moves and eek out the victory.
This is very interesting because it means the AI is basically using exploits to beat humans, rather than making the best possible moves, it simply wins and has a strategy orientated around it's strengths.
Source
https://www.youtube.com/watch?v=YXKUuHnbyiE
>>8637297
But it still beat a human anon. Don't belittle our soon to be robot overlords
>>8637299
This isn't belittling. It's actually better.
It makes substandard moves because it's specific hardware/architecture is so much better once the board is simplified. For instance the hard part about GO was the simple size of the board and how it made simple branching searches terrible. The Alphago natural strategy evolved into attempting to break up the board into simpler pieces that such searches work best in.
>>8637297
Cheap exploits? That's like when people complain that you used a certain weapon on a game because it's "overpowered". It didn't break any rules, it stills plays the game better than us. If anything, that makes it more impressive. I hope this 1 hour video I didn't bother to watch doesn't imply otherwise.
Recently I've been reading biographies of famous Mathematicians and one thing that made me really envy them was how they were part of a math circle during their undergraduated days until their death. Hilbert, as a Professor, used to call students to walks while discussing mathematics, philosophy and more things. He used to call people to his house and every day students went and come from his house any time. Russian professor had math circles too, they helped each other, developed their mathematicians and helped them go beyond their limits. The students that time were really into mathematics(and physics and philosophy for some) and they had fun discussing mathematics with friends and professors. They were really part of something, you could read about Leibniz and how he used to trade letters with famous mathematician of his time. Same for Courant, Poincaré, Leibniz, Hilbert, Cantor, Dedekind....
Now is quite sad. A professor only have office hours for an student, after that time the student can only ask questions during the professor's lecture. It feels like there is not the same feeling as 'professor and student' like in URSS and Europe back then, no time for discussing mathematics like you read about famous mathematicians of the past. I can't find people to discuss mathematics even in my course(which is Pure Mathematics) because they only want to talk about non-related things(games for the most part). I really wish I could be born during that time if I'd be part of a math circle, that I'd be able to discuss mathematics with people who knows and love mathematics. It seems fun to trade letters with famous people of your field, to meet up with people and discuss mathematics, to discuss problems and solving them(related to mathematics), to explain what they are researching, to conjecture and prove things, to study together and help each other, to do mathematics. So /sci/, why does study mathematics back then seems way more fun than now?
I guess I just want to discuss mathematics with people, friends, whatever. How fun it would be to be part of Göttigen circle. I can understand why Perelman give up Mathematics after seeing that mathematics is not as social as he expected it to be(though in his case there was something more that forced him give up in mathematics).
Because we have the internet.
Yet I believe that is only half the truth, I think there is a certain social pressure on people nowadays to have a "healthy work/life balance". I think back then there was not social stigma associated with going full autism, so many people just went for it.
>>8642635
>implying Perelman isn't still doing math in his basement
I wouldn't be surprised if he had already prooved the existence and smothness of the Navier-Stokes equation.
why do my finger shines red when I press it against a phone's white flashlight ?
>>8642389
because the earth is flat thats why
The flashlight heats your finger to roughly 800C, so it begins to emit light on the red spectrum.
>>8642399
oh so that's why it's hot.
Thanks Anon.
no seriously I may be new to /sci/ but I'm not retarded. If it's the same as /g/ (not a tech support board) then I'll leave.
What good books are there on the subject of P = NP, NP-completeness and the like?
I have Fortnow's "The Golden Ticket" and Garey & Johnson's "Computers and Intractability"
How else can I get into the subject and slowly creep towards the forefront of research? Who is actively researching it? What literature/publications can I read to bring me up to speed?
>>8642107
I'm also interested in this kind of thing. I haven't heard any news on it recently besides that one guy in Chicago doing some sort of graph isomorphism problem in psuedo-polynomial time.
>>8642214
I made a duplicate thread on /g/ and an anon posted this:
http://www.scottaaronson.com/papers/pnp.pdf
>>8642214
Graph isomorphism is not NP-C. Subgraph isomorphism is.
Could an intelligent species perform nuclear fusion inside of it's body to sustain itself?
>>8642096
there's probably an easier way to do what you're asking
>>8642096
how high are you right now?
>>8642096
I don't think there's enough room for shielding if you're trying to put it inside your body.
What is it that makes carbon a better element to bond with than say silicon or germanium
>>8641998
smaller atomic radius.
>>8642008
That literally answers every fucking question I had in AP chem that my teacher never answered NOW IM STUCK IN PRINCIPLES OF CHEM FOR 2 YEARS REEEEEEEEEEEEEEEE
>>8641998
definde "better element to bond with", for example SI-F bonds are way stronger than C-F bonds...
The best car on the track is not the best car offroad - always depends on the circumstances
I want to present a project that is too ambitious, I'm a very weak type, so I hate to study or read.
I want to invent something similar or with the same function of the "bread of memory" of the anime Doraemon, practically the function is to memorize and learn with the least effort.
A main aid to students and especially to the idle people, someone is encouraged to contribute ideas or theories of how to achieve it?
You want a theory about how to make that bread or just anything that can help a person to learn something passively?
anything that can help a person to learn something passively, :)
Just make regular bread and tell people its memory bread. The placebo effect will do the rest.
is it possible to make a structure smaller than atom using artificial wave functions?
>>8641963
The waves themselves could be the structure. In fact, you could make a machine and computer using waves as the medium for the mechanics and computation.
>>8641963
I don't understand the question.
An electron has a wave function. It is smaller than an atom.
>>8641993
but how would you stabilize it? like what defines the stability of an atom and how would you translate that model to wave functions?
>so got accepted to queen's uni, canada
>Engineering major in my first year
>feels that engineering is maths for brainlets
>going to switch my major to maths next year
>therefore i need to know from you fags what's the most "Difficult" first year curriculum in mathematics will be like to begin with it over summer
>textbook recommendations, book lists, personal stories will be appreciated alot
thanks in advance
>>8641938
>hasn't taken university math yet
>already wants to switch
First year engineering takes three first year math courses, see how those go for you and then consider switching into math.
>>8641938
Also, Stewart Calculus is a good introductory calculus book. It's probably what you're using for your first year math class anyway.
How do I reduce the time it takes for my optimization algorithms to run? I'm looping through millions of variables and sometimes it takes me several days to get a result. Do I need a supercomputer or something? I'm running an i7 processor with 8 GB ram.
>>8641851
There are a ton of things you can do. Did you even make your program run in parallel? Your thread is probably a /g/ question though.
>>8641851
Since you did not respond, I assume you did not.
You might want to try to find some computer science friends or department resources to help you optimize your program.
The problem your facing is common in scientific computing and is often caused because a parameter sweep/search is needed.
>>8641883
w-what if i don't have any friends?
Why do people get PhDs in biomedical science when they could just go to medical school?
>>8641704
Because poorfags, like /sci/ and /g/ at best get to CC and only go to nice universities by scholarships and no FAFSA/State grant.
Nothing wrong with them though, they're still doing many great things.
>>8641704
There is a joke.
Surgeon, researcher, and health admin are in an elevator.
Surgeon says he is most important because he saves lives each day. Researcher says surgeon is a glorified butcher and would have no procedures to perform or medical knowledge without research paving the way. Health admin says she is the most important because without her neither get a paycheck. Now get back to work!
>>8641704
Because PhDs want to do science. Medical school does not involve scientific training.
cheek theem
>57
we did it reddit
>>8641657
>dubs
Why not n digits then?
Whoever gets the biggest digit, shall become the king of /sci/.
Prime digits checkem
>working on your PHD thesis in particle physics
>lean back in your chair to let all the blood flow back from your massive brain and momentarily recucitate your atrophying body.
>suddenly feel a cold steel barrel pressing against the back of your neck
>we are the ghosts of philosophers past present and future
>you must now overcome any potential biases and use all your available brain power to try and come up with a plausible reason for why science could be fundamentally flawed
>if you do not make a serious effort your frontal lobe will be shot clean off
Go.
>>8641364
sounds boring
pass
>>8641364
do i get a ghost blowjob first?
>>8641380
Dont confuse your lack of ability with a lack of motivation.