Search found 21455 matches

by gmalivuk
Tue Nov 21, 2017 5:23 pm UTC
Forum: Mathematics
Topic: Assassin Problem over the Internet
Replies: 40
Views: 1302

Re: Assassin Problem over the Internet

Then people will cheat regardless of the method you use, including in person.
by gmalivuk
Mon Nov 20, 2017 10:43 pm UTC
Forum: Mathematics
Topic: Assassin Problem over the Internet
Replies: 40
Views: 1302

Re: Assassin Problem over the Internet

Again, the fact that people can completely sabotage the game if they want to isn't a weakness of any particular method of assigning roles, because someone could refuse to play in any system.
by gmalivuk
Mon Nov 20, 2017 4:30 pm UTC
Forum: Mathematics
Topic: Assassin Problem over the Internet
Replies: 40
Views: 1302

Re: Assassin Problem over the Internet

It looks like that's a difference between Derek's description and Xanthir's. (But yeah, in Xanthir's description, Bob doesn't get to make any choices. Everyone knows the full cycle as soon as it's posted, they just don't know which real people correspond to which secret email address until their tar...
by gmalivuk
Sun Nov 19, 2017 5:49 pm UTC
Forum: Mathematics
Topic: Assassin Problem over the Internet
Replies: 40
Views: 1302

Re: Assassin Problem over the Internet

Yeah, there's some mixing up of the direction targeting goes in that explanation, but in any case if you're worried about people sharing information they shouldn't be sharing, that's something they could do in any arrangement (including the in-person version), so I'm not sure it counts as a weak poi...
by gmalivuk
Sun Nov 19, 2017 3:40 pm UTC
Forum: Mathematics
Topic: Maximizing 2 Variables
Replies: 19
Views: 575

Re: Maximizing 2 Variables

↶ If an objective function can find the value that maximizes variables weighted by their importance, then what does Hardin's quote mean? Maximizing variables weighted by importance maximizes something like a*x+b*y. In other words, it maximizes something like the sum of two variables. The quote mean...
by gmalivuk
Sun Nov 19, 2017 3:27 pm UTC
Forum: Mathematics
Topic: Assassin Problem over the Internet
Replies: 40
Views: 1302

Re: Assassin Problem over the Internet

I see.

(When I read the forums via mobile data on my phone, I never watch videos.)
by gmalivuk
Sun Nov 19, 2017 3:20 am UTC
Forum: Mathematics
Topic: Assassin Problem over the Internet
Replies: 40
Views: 1302

Re: Assassin Problem over the Internet

As for doing this remotely (over the internet) as Eebster requested, I haven't found a solution that doesn't involve some trusted third party. Eebster did not request that; I did in the OP. The Assassin Problem has already been solved for in person play. This is objectively the best solution. Is th...
by gmalivuk
Fri Nov 17, 2017 2:15 pm UTC
Forum: Mathematics
Topic: Maximizing 2 Variables
Replies: 19
Views: 575

Re: Maximizing 2 Variables

My MSPaint masterpiece wasn't meant to show a global maximum, just what a local maximum (of two variables at the same time) would look like.
by gmalivuk
Thu Nov 16, 2017 4:34 pm UTC
Forum: Mathematics
Topic: Maximizing 2 Variables
Replies: 19
Views: 575

Re: Maximizing 2 Variables

Yeah, with x(t) and y(t) plotted on an x-y plane, maximizing x and y at the same time means having a cusp that "points" toward the top-right. cusp.png Such a cusp is not a general feature of parametric plots, and it's irrelevant (to the general case) that if your graph is just a line segme...
by gmalivuk
Thu Nov 16, 2017 4:14 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1916: "Temperature Preferences"
Replies: 82
Views: 2990

Re: 1916: "Temperature Preferences"

From the chart it seems that Sao Paulo, Brisbane, Perth, and LA are the best cities in the world, climate-wise. Only if you hate cold winters and don't mind fairly warm/hot summers. Wellington is incorrect. Auckland, maybe. Auckland would be a bit up and to the right of Wellington, but it's in the ...
by gmalivuk
Thu Nov 16, 2017 4:05 pm UTC
Forum: Science
Topic: Miscellaneous Science Questions
Replies: 2853
Views: 561040

Re: Miscellaneous Science Questions

I don't think it would affect suboceanic plates or be a direct consequence of CO 2 concentrations, but the existence of a connection isn't totally far-fetched . If some type of tectonic activity is already near a tipping point, then even small changes in pressure (such as air pressure in a storm) or...
by gmalivuk
Thu Nov 16, 2017 4:37 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1914: "Twitter Verification"
Replies: 61
Views: 3760

Re: 1914: "Twitter Verification"

It's almost as though copy and paste are things one can do.
by gmalivuk
Wed Nov 15, 2017 9:27 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1916: "Temperature Preferences"
Replies: 82
Views: 2990

Re: 1916: "Temperature Preferences"

Regarding the mouseover, I seem to recall first seeing that quote while reading Following the Equator , by Mark Twain, an autobiographical account of a world lecture tour that he kicked off from San Francisco, IIRC. I'm pretty sure it's a paraphrase of a genuine Twain quote. If it's genuine, it's n...
by gmalivuk
Wed Nov 15, 2017 9:08 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1914: "Twitter Verification"
Replies: 61
Views: 3760

Re: 1914: "Twitter Verification"

Preventing the possibility of anyone being offended by anything That's not the goal behind suggesting that Nazis should be banned. The problem with Nazis isn't that they are offensive, it's that they are dangerous. As evidenced by the assault, gunshots, and fucking murder that happened at Unite the...
by gmalivuk
Wed Nov 15, 2017 6:23 pm UTC
Forum: Logic Puzzles
Topic: Escape the Frictionless Circle
Replies: 146
Views: 28920

Re: Escape the Frictionless Circle

I have skimmed, but not read all, of the responses and have a suggestion that relies on two ideas: 1. There is friction between you and the block. 2. There is potential energy in the system (you are upright and can fall down) that can be converted into horizontal momentum using that friction. You d...
by gmalivuk
Tue Nov 14, 2017 6:12 pm UTC
Forum: Science
Topic: Speed of gravity.
Replies: 32
Views: 1209

Re: Speed of gravity.

The gravity from the pair that I experience is equivalent to 2 solar masses sitting at the centre-of-mass of the binary pair, correct? No. That's a good approximation if you're much farther out than the distance between the stars, but it isn't exact because the closer star has more of an effect inc...
by gmalivuk
Mon Nov 13, 2017 10:06 pm UTC
Forum: Science
Topic: Speed of gravity.
Replies: 32
Views: 1209

Re: Speed of gravity.

↶ Gravity waves need *energy*. That can't, obviously, come from a constantly moving object. Well two neutron stars orbiting each other have no means of slowing down and spiralling-in, other than they lose energy via gravity wave radiation, so do then ALL rotating masses lose energy in this way (jus...
by gmalivuk
Mon Nov 13, 2017 9:01 pm UTC
Forum: Mathematics
Topic: Question about mathematical "proof"
Replies: 5
Views: 224

Re: Question about mathematical "proof"

Pro-Tip: If the existing theorem took a long time for trained mathematicians to prove, and you're tinkering with it as a hobby and asking for help on a web forum, then you almost certainly did not find a more elegant proof. Either it's not a proof at all (more likely), or whatever you did find boils...
by gmalivuk
Mon Nov 13, 2017 4:42 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1914: "Twitter Verification"
Replies: 61
Views: 3760

Re: 1914: "Twitter Verification"

When Nazis call themselves alt-right white nationalists, they don't stop being Nazis.
by gmalivuk
Mon Nov 13, 2017 4:26 pm UTC
Forum: Science
Topic: Speed of gravity.
Replies: 32
Views: 1209

Re: Speed of gravity.

Wikipedia's article includes an image of a circle of points being affected by regular gravitational waves. https://upload.wikimedia.org/wikipedia/commons/thumb/b/b8/GravitationalWave_PlusPolarization.gif/150px-GravitationalWave_PlusPolarization.gif My understanding is that if gravitational strain i...
by gmalivuk
Mon Nov 13, 2017 1:16 pm UTC
Forum: Mathematics
Topic: Question about mathematical "proof"
Replies: 5
Views: 224

Re: Question about mathematical "proof"

It depends on what 'a' represents and on what your equations are. If you won't tell us those things, we can't help you.
by gmalivuk
Sat Nov 11, 2017 2:21 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1914: "Twitter Verification"
Replies: 61
Views: 3760

Re: 1914: "Twitter Verification"

↶ Instead they verified him (which as a bunch of other people have said, if you'd bothered to read the thread more closely before sharing your ignorant opinion, confers a bunch of benefits besides simply verifying that a Twitter account belongs to a particular person). I do not use twitter so I am ...
by gmalivuk
Fri Nov 10, 2017 7:33 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1914: "Twitter Verification"
Replies: 61
Views: 3760

Re: 1914: "Twitter Verification"

↶ If human being is influential/popular enough he should be verified, no matter how bad we think he is. How the hell can it be any other way? Like, let's pretend Nazis aren't real people and we will finally have world peace - is that what Twitter Co think? Ridiculous. ( yeah, this thread is about c...
by gmalivuk
Thu Nov 09, 2017 5:40 pm UTC
Forum: Mathematics
Topic: Assassin Problem over the Internet
Replies: 40
Views: 1302

Re: Assassin Problem over the Internet

Okay but now you need to explain what X and G are and where they come from. (Which are the numbers assigned by the captains?) Tangential question; what is the notation to say that an equation is written in modular arithmetic? I usually say things like "a = b (mod n)", though technically th...
by gmalivuk
Thu Nov 09, 2017 4:57 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1913: "A �"
Replies: 65
Views: 3632

Re: 1913: "A �"

Do we know if that counts as just one character, or two, or three, in the newly expanded #280 Twitter-verse? IIRC, Twitter counts either Unicode code points or UTF-16 code units. Either way, � is one "character". It's two, as verified by checking Twitter just now. (That new fucking circle...
by gmalivuk
Thu Nov 09, 2017 4:42 pm UTC
Forum: Mathematics
Topic: Assassin Problem over the Internet
Replies: 40
Views: 1302

Re: Assassin Problem over the Internet

My understanding of the problem (for people unfamiliar with Assassin or uninterested in watching the video): Assassin Rules: You have n people playing the game. Each person has a target among the other people, whom they are supposed to "kill" (in some manner determined by the rules of the ...
by gmalivuk
Thu Nov 09, 2017 2:23 am UTC
Forum: Logic Puzzles
Topic: Escape the Frictionless Circle
Replies: 146
Views: 28920

Re: Escape the Frictionless Circle

No, it won't work, because it will move backwards with exactly the same amount of linear momentum it imparted to you, and the center of mass will stay where it is. The collision turns some of the block's rotational momentum into you and the block's linear momentum.
by gmalivuk
Tue Nov 07, 2017 1:15 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 413
Views: 35982

Re: Science-based what-if questions

If you're talking about the black hole, spinning it won't make an important difference.

If you're not talking about the black hole, you'd need something to keep it spinning for it to be drill-like, because otherwise it will lose its angular momentum too quickly to do any good.
by gmalivuk
Mon Nov 06, 2017 9:54 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 413
Views: 35982

Re: Science-based what-if questions

It also needs to have no electric charge.
by gmalivuk
Mon Nov 06, 2017 4:44 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 413
Views: 35982

Re: Science-based what-if questions

We can't make it too small though - it is going to be absorbing material on its journey through the Earth, and any material it does absorb will slow it down equal to that material's momentum. So it's got to be big enough that it can actually have enough speed to reach the other side. And you do nee...
by gmalivuk
Mon Nov 06, 2017 4:27 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 413
Views: 35982

Re: Science-based what-if questions

Fire it at the ground at just over escape velocity, and it should exit the other side of the Earth going slightly slower, fulfilling your "through the Earth" requirement. There would be a colossal explosion for sure but I feel like the Earth would remain [largely] intact - since only a fr...
by gmalivuk
Mon Nov 06, 2017 2:43 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1911: Defensive Profile
Replies: 47
Views: 3073

Re: 1911: Defensive Profile

I'm surprised that Randall launched such a direct attack on Obama. "No Drama Obama", as he has often called himself, is surely the most famous person to describe themselves so frequently as being "No Drama". For Randall to say that Obama is "terrified of [making people sad]...
by gmalivuk
Mon Nov 06, 2017 2:38 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 413
Views: 35982

Re: Science-based what-if questions

The problem is, the faster the bullet moves, the faster it has to push stuff out of its way, so an approximation that considers just the transfer of momentum doesn't depend on velocity at all.
by gmalivuk
Mon Nov 06, 2017 1:48 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1911: Defensive Profile
Replies: 47
Views: 3073

Re: 1911: Virtue Signalling Volume 7

Randall Monroe is better than you. Offense is only offered, it's up to you to take it or reject it. You don't have to be offended. People are usually most offended by things they fear are true... or that are true. And your posting history suggests that you're most offended by comics you interpret a...
by gmalivuk
Fri Nov 03, 2017 3:58 am UTC
Forum: News & Articles
Topic: The Thread To Remind Me We're Living In The Future
Replies: 1548
Views: 213030

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

Liri wrote:Edit again: they even said it in the damn article - from heel to head.
It's almost as if the text of news articles sometimes further explains statements made in their headlines or something!
by gmalivuk
Thu Nov 02, 2017 12:21 pm UTC
Forum: Science
Topic: Really Lucky's statistic
Replies: 13
Views: 653

Re: Really Lucky's statistic

Even if we could objectively define (and measure) all of those things, we'd still only end up with a probability. And in this case, even if they were independent of each other (which they aren't), the probability of one person randomly ending up with all five traits is about 10^-40, which is still f...
by gmalivuk
Wed Nov 01, 2017 5:48 pm UTC
Forum: Science
Topic: Really Lucky's statistic
Replies: 13
Views: 653

Re: Really Lucky's statistic

This is one of those discussions where you need a really rigorous definition of "blessed". To me, blessed and lucky mean the exact same thing. You would also need a specific definition of what counts as "lucky". But if you have both definitions in terms of probabilities, then yo...
by gmalivuk
Wed Nov 01, 2017 4:36 pm UTC
Forum: Science
Topic: Really Lucky's statistic
Replies: 13
Views: 653

Re: Really Lucky's statistic

You could never really know, you could only ever just state the statistics.

Without a prior probability of being blessed (i.e. "A randomly selected person has a 1 in N chance of being truly blessed"), we can't even say, "This lucky person has an M in N chance of being blessed."
by gmalivuk
Wed Nov 01, 2017 12:45 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1909:"Digital Resource Lifespan"
Replies: 61
Views: 3123

Re: 1909:"Digital Resource Lifespan"

Please do not double (or sextuple) post.
by gmalivuk
Tue Oct 31, 2017 5:07 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1909:"Digital Resource Lifespan"
Replies: 61
Views: 3123

Re: 1909:"Digital Resource Lifespan"

This is why we need more monks majoring in computer science. Not the monks! They destroyed more classical works of science for their stupid fairy stories than fire and flood. OK, probably not that many, but many. Some Greek works only survive because the monk involved wasn't very good at washing th...

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