Search found 801 matches

by MartianInvader
Sun Apr 07, 2019 4:09 am UTC
Forum: Mathematics
Topic: What do Average Mathmaticians Do?
Replies: 16
Views: 1675

Re: What do Average Mathmaticians Do?

I’m not in academia, but one of the reasons for that is that I’ve gotten the impression that going into academia with big dreams of answering questions you care about is setting yourself up for disappointment, because the actual job will usually end up doing the grunt work for the project that was ...
by MartianInvader
Thu Mar 28, 2019 5:51 pm UTC
Forum: Mathematics
Topic: Most useful isomorphisms you know?
Replies: 6
Views: 1264

Re: Most useful isomorphisms you know?

Since you mentioned algebraic topology I've always loved the isomorphism between an arbitrary group and the fundamental group of its presentation complex.
by MartianInvader
Tue Mar 26, 2019 11:32 pm UTC
Forum: News & Articles
Topic: 2020 Presidency Campaign for the Future
Replies: 127
Views: 7416

Re: 2020 Presidency Campaign for the Future

Huh. This thread started by pointing out the vast disinformation campaigns being launched against candidates via social media, and now is discussing candidates by referencing attacks on them on social media.
by MartianInvader
Sun Feb 03, 2019 5:56 pm UTC
Forum: News & Articles
Topic: British EU referendum in June [update: Leave wins 52% - 48%, politics ensue]
Replies: 1402
Views: 233341

Re: British EU referendum in June [update: Leave wins 52% - 48%, politics ensue]

I don't think there's much else the EU *can* do, given the UK's "Give me more or I'll hold my breath until I pass out" strategy.
by MartianInvader
Sun Jan 20, 2019 7:13 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

You have got to give Trump credit where it is due. The lies stream out of his mouth so smoothly and with such excellent acting, intonation, and conviction. I can definitely see why his supporters are so ready to believe him. If I didn't catch some of the logical leaps (Vast quantities of drugs pour...
by MartianInvader
Thu Jan 03, 2019 1:26 am UTC
Forum: News & Articles
Topic: Amoeba Solves Traveling Salesman (P=NP)
Replies: 8
Views: 2998

Re: Amoeba Solves Traveling Salesman (P=NP)

The problem you've spotted is indeed a problem. Humans and algorithms can already solve the traveling salesman problem in linear time up to n=8.
by MartianInvader
Wed Jan 02, 2019 4:28 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

Yeah, there's been a gradual change of tone coming from both the Republicans themselves and Fox News ever since the midterms. I think they're finally starting to see him as a losing bet. I'm guessing we'll see this criticism ratcheting up over the next few months. I doubt we'll see impeachment, but ...
by MartianInvader
Tue Jan 01, 2019 4:21 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

I am afraid of making political beliefs, of any kind, illegal. Even Trump has not yet done this. Also, I set a higher bar than "not worse than what the Trump administration has done" when deciding what I think the government should do. I hope most people do the same. Interesting, using la...
by MartianInvader
Mon Dec 31, 2018 9:04 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

What are you afraid of that's worse than what the Trump administration has done? Demonization of a minority group (Nazis), Mass incarceration of Nazis? Terrified Nazis who hide from government officials? You're could argue something about Nazi sympathizers who get caught up in the system, but you'r...
by MartianInvader
Mon Dec 31, 2018 4:46 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

Given all the dark news, If the Democrats win 2020, I'm thinking they should purge Hydra Nazis from the country, immediately. Trump has shown that Nazis are everywhere and are everyday people you meet. Kinda dark, but being patient with them hasn't gotten us anywhere, and made things worse. Let's s...
by MartianInvader
Sat Dec 15, 2018 4:28 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2085: "arXiv"
Replies: 16
Views: 5154

Re: 2085: "arXiv"

pogrmman wrote:arXiv is really, really subject-dependent. If you’re looking for a physics or astronomy paper, you can probably just go to arXiv and find it. But outside of those fields, they don’t really have a ton of stuff.

Also most fields in math.
by MartianInvader
Thu Nov 08, 2018 3:40 am UTC
Forum: News & Articles
Topic: 2018 Midterm Elections Coverage
Replies: 217
Views: 46140

Re: 2018 Midterm Elections Coverage

I'm choosing to take the Democrat-friendly interpretation of the Senate results, namely that they won ~26 of the 35 races.
by MartianInvader
Fri Oct 05, 2018 10:44 pm UTC
Forum: Mathematics
Topic: Equivalency on Mutliple Intervals
Replies: 10
Views: 10864

Re: Equivalency on Mutliple Intervals

Is |x| considered a piecewise function? It's really just x^2 / x, right? If it's not, take f = x, g = |x|. Is x^3/x^2 considered a different function from x because it's not defined at zero? If so, take [a,b] = [1,2] and [c,d] = [-1,1]. How about the floor function? How about a function defined as a...
by MartianInvader
Tue Oct 02, 2018 4:18 pm UTC
Forum: Mathematics
Topic: Curve Filling a Rectangle
Replies: 21
Views: 9550

Re: Curve Filling a Rectangle

Oh my goodness, of course! Logarithms! I don't know why I didn't see it before! Soupspoon, you're brilliant! And definitely someone who knows what they're talking about and not at all faking it. I'm going to have to move you way up in the rankings in my latest project - ranking people from best to w...
by MartianInvader
Mon Oct 01, 2018 9:58 pm UTC
Forum: Mathematics
Topic: Curve Filling a Rectangle
Replies: 21
Views: 9550

Re: Curve Filling a Rectangle

What is a sufficient condition for the existence of a continuous surjection that is stricter than the hypothesis of the Riemann Mapping Theorem? We're being a little fast and loose with our conditions anyway, since the Riemann Mapping theorem is about open sets, but anything covered by a path is go...
by MartianInvader
Sun Sep 30, 2018 4:58 pm UTC
Forum: Mathematics
Topic: Curve Filling a Rectangle
Replies: 21
Views: 9550

Re: Curve Filling a Rectangle

You can even do a little better than what the Riemann mapping theorem gets you, since you only need a surjective mapping and not a full-on homeomorphism. You can wrap the square around a donut shape (annulus), for example (you don't need simple connectedness, just path connectedness I believe).
by MartianInvader
Sat Sep 29, 2018 8:22 pm UTC
Forum: Mathematics
Topic: Curve Filling a Rectangle
Replies: 21
Views: 9550

Re: Curve Filling a Rectangle

Yeah it wasn't clear to me in which order he was composing the functions, but in this case, again, that's just what surjective means. I meant from the square to a region of R 2 . And being surjective isn't enough, as I said it also needs to be continuous. Otherwise, you don't have a space-filling c...
by MartianInvader
Wed Sep 26, 2018 2:41 am UTC
Forum: Mathematics
Topic: Curve Filling a Rectangle
Replies: 21
Views: 9550

Re: Curve Filling a Rectangle

Just wanted to add, the beauty of a space-filling curve is that it's purely topological - which means you can compose it with any continuous function (well, any surjective continuous function) and you still have a space-filling curve. So you can start with the Hilbert curve and "stretch" i...
by MartianInvader
Wed Sep 26, 2018 2:28 am UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

I was referring to this article in the Washington Examiner For the record, this is the point at which it became apparent that there's no need to take you seriously. That's much harsher than necessary. I'd simply say that claiming that looking for truth implies a liberal bias? It doesn't sound like ...
by MartianInvader
Tue Aug 14, 2018 2:36 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2031: "Pie Charts"
Replies: 19
Views: 4667

Re: 2031: "Pie Charts"

Now that you mention it, yeah I guess it depends on what geometric entity represents percentage. I was thinking "area" since circumference arc lengths and vertex angles would be meaningless. There might be some other measure that works ... maybe sum of the interior angles, or something li...
by MartianInvader
Sat Aug 11, 2018 2:53 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2031: "Pie Charts"
Replies: 19
Views: 4667

Re: 2031: "Pie Charts"

I always knew Randall could get hyperbolic at times, but this is getting ridiculous. I think it's like with triangles; pie charts add up to more than 100% on positively curved surfaces, exactly 100% on flat ones, and less than 100% on negatively curved surfaces. Other way around. Negatively curved s...
by MartianInvader
Wed Aug 08, 2018 6:29 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2030: "Voting Software"
Replies: 45
Views: 12652

Re: 2030: "Voting Software"

Even if someone invents an actually secure voting method, whatever company makes the voting machines will probably implement only half of it to save costs, leaving it vulnerable. Plus they'll insert a couple backdoors just in case they need to use them, and they'll use compiler software they bought ...
by MartianInvader
Sat Aug 04, 2018 2:46 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2028: "Complex Numbers"
Replies: 48
Views: 8609

Re: 2028: "Complex Numbers"

What are all the differences between ℝ2 and ℂ? ⋅ First the complex plane is a connected set whereas two dimensional real numbers are not. ⋅ Second, the complex plane is capable of definite integration for systems which don't have definite solutions using only real numbers. &sdot...
by MartianInvader
Fri Jul 20, 2018 7:45 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2021: "Software Development"
Replies: 31
Views: 7956

Re: 2021: "Software Development"

Sableagle wrote:Without knowing the specs of the wall and the holes they need in it, I can't say for sure that a Wingmaster and 20 rounds of #4 buckshot wouldn't have had the job done inside 2 minutes.

We can't trust third-party libraries! Better to build something in-house so we have control of it.
by MartianInvader
Thu Jul 19, 2018 8:13 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2021: "Software Development"
Replies: 31
Views: 7956

Re: 2021: "Software Development"

Am I the only one who thinks that drill guy is the one in the wrong here? My experience as a software engineer has been seeing far too much time wasted building fancy tools and options that no one wants or needs. All he had to do was build a cannonball and he could have moved on to the next project....
by MartianInvader
Mon Jun 11, 2018 3:28 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2005: "Attention Span"
Replies: 78
Views: 12283

Re: 2005: "Attention Span"

"Thomas, if you spend all your time worrying about silly things like freedom and equality, you'll never be REALLY useful!"
by MartianInvader
Wed Jun 06, 2018 3:03 am UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

If SCOTUS rules that fetuses (feti?) are alive and thus abortion is murder, there's no law short of legalizing murder that would make abortions legal again. You'd have to add an amendment to the constitution to get around that. If killing anything that's alive counts as murder, we'll all starve to ...
by MartianInvader
Wed Feb 21, 2018 5:08 pm UTC
Forum: News & Articles
Topic: In other news... (humorous news items)
Replies: 15136
Views: 2594322

Re: In other news... (humorous news items)

I thought other people throw rocks at houses, and you sweep up the broken windows?
by MartianInvader
Fri Jan 19, 2018 9:25 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

Nice link, but the geographic map they provide looks just like the rest of the country - blue cities and their metros, and red rural areas.

The population-weighted map sure makes California look MUCH more liberal than the country as a whole to me.
by MartianInvader
Fri Jan 19, 2018 8:53 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

Remember; California isn't truly much more liberal than the rest of the country, just that the conservatives have all but given up. I think a statement like this needs a source. 46% of the country voted for Trump, 31% of California voted for him. You'll see higher percentages for every Democratic p...
by MartianInvader
Tue Jan 09, 2018 12:42 am UTC
Forum: Mathematics
Topic: Halting Problem
Replies: 208
Views: 44099

Re: Halting Problem

I just stumbled on this thread, but it might be a good thought-excercise to construct Devious yourself. In other words, solve the following problem: Suppose you have an Oracle O(p, i) that correctly tells you whether any program will halt given any input (you can imagine this as just a bunch of code...
by MartianInvader
Tue Jan 02, 2018 1:56 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

Then explain how FOX News was the only network brave enough to report on the conspiracy behind Seth Rich's murder, huh? Or have a minister from Sweden on to explain what's really happening with Muslims in that country?

Checkmate.
by MartianInvader
Fri Dec 22, 2017 10:49 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

Yeah, the article itself admits the poll showing split support is an outlier:

Moreover, the POLITICO/Morning Consult poll stands in contrast to other public surveys that show majorities in opposition to the bill.
by MartianInvader
Wed Dec 06, 2017 10:33 pm UTC
Forum: News & Articles
Topic: The Thread To Remind Me We're Living In The Future
Replies: 1920
Views: 378118

Re: The Thread To Remind Me We're Living In The Future

DeepMind described the level of performance achieved as being "superhuman"

Not only is the AI good, it's full of itself...
by MartianInvader
Wed Nov 22, 2017 9:28 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

If you genuinely believe Moore is innocent, it's reasonable to still support him. It's a position I disagree with, but I don't see those who hold it as human garbage (or worse).
by MartianInvader
Thu Nov 09, 2017 10:50 pm UTC
Forum: News & Articles
Topic: The Thread To Remind Me We're Living In The Future
Replies: 1920
Views: 378118

Re: The Thread To Remind Me We're Living In The Future

Personally, I would have just written it so that there was no DNA combining and the protagonists realizing that modern lizard's ability to change their sex was inherited from their dinosaur ancestors. It is much more scientifically accurate and reinforces the message that unexpected variables can/ ...
by MartianInvader
Thu Oct 05, 2017 2:20 pm UTC
Forum: News & Articles
Topic: Trump presidency
Replies: 8589
Views: 809705

Re: Trump presidency

Jumble wrote:Possibly, but if he throws some roles of paper towel to the people of Las Vegas I would love to see them throw them straight back at the worthless fucker.

Its "rolls".
by MartianInvader
Fri Sep 22, 2017 12:59 am UTC
Forum: News & Articles
Topic: Antifa & neo-Nazi Ned in: "Too Many Violence?"
Replies: 409
Views: 88022

Re: Antifa & neo-Nazi Ned in: "Too Many Violence?"

Meanwhile, I'll stick to my belief that if you proclaim yourself a supporter of wanton genocide and the extermination of over half the world's population, the consequences of your choices are yours to bear, regardless of whether or not those consequences involve getting punched. Of course, we could...
by MartianInvader
Wed Sep 20, 2017 10:40 pm UTC
Forum: News & Articles
Topic: Antifa & neo-Nazi Ned in: "Too Many Violence?"
Replies: 409
Views: 88022

Re: Antifa & neo-Nazi Ned in: "Too Many Violence?"

Could... could we maybe get back to discussing whether violence against Nazis/White supremacists is morally justified? I still really, really don't think it is unless it's against someone who is actively being physically violent.
by MartianInvader
Wed Sep 20, 2017 9:38 pm UTC
Forum: News & Articles
Topic: Antifa & neo-Nazi Ned in: "Too Many Violence?"
Replies: 409
Views: 88022

Re: Antifa & neo-Nazi Ned in: "Too Many Violence?"

We're not talking about whether racists feel threatened by the presence of black people, we're talking about whether someone is *actually* threatened. Facts before feels, right? But is "being threatened" actually an unambiguous fact? The argument I keep trying to make is that "Person...

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