Search found 160 matches

by madaco
Wed Jun 06, 2018 4:46 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2001: "Clickbait-Corrected p-Value"
Replies: 15
Views: 1399

Re: 2001: "Clickbait-Corrected p-Value"

Why would p be almost certainly 1?

Surely there is a positive probability that someone would click the null hypothesis headline, and also a positive probability that the regular p value would be less than 1, so, ?
by madaco
Mon Jun 04, 2018 6:04 am UTC
Forum: Individual XKCD Comic Threads
Topic: 2001: "Clickbait-Corrected p-Value"
Replies: 15
Views: 1399

Re: 2001: "Clickbait-Corrected p-Value"

There is no meaningful way to deal with this formula as long as it produces probabilities greater than one. Why not interpret it as something other than a probability? Like, say, as something reflecting a component contributing to likely accidental misinformation, and therefore something to be redu...
by madaco
Sun Jun 03, 2018 9:30 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 2001: "Clickbait-Corrected p-Value"
Replies: 15
Views: 1399

Re: 2001: "Clickbait-Corrected p-Value"

This is an intriguing idea. Ok so, the p value represents P(strength of evidence is at least as much as the observed results | H_0) (right?), so then this would end up representing P(strength at least that of observed results | H_0) * (click(H_1)/click(H_0)) So, the expected clicks on claim of H_1 i...
by madaco
Wed Apr 25, 2018 4:33 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1985: "Meteorologist"
Replies: 54
Views: 5968

Re: 1985: "Meteorologist"

I like this one!
by madaco
Mon Apr 23, 2018 8:53 pm UTC
Forum: Mathematics
Topic: Curve Filling a Rectangle
Replies: 5
Views: 1146

Re: Curve Filling a Rectangle

The square and the rectangle are homeomorphic.

Take the obvious homeomorphism between the square and the rectangle. Compose this with the curve. The result should be a curve that fills the rectangle.

Right?
by madaco
Mon Apr 23, 2018 8:44 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1984: "Misinterpretation"
Replies: 45
Views: 5885

Re: 1984: "Misinterpretation"

When reading this, it is difficult for me to not imagine that the author saw someone else complaining that people were misinterpreting them frequently, when they think that they are writing clearly (perhaps they even feel like they are putting in quite a bit of effort to try to be understood). The c...
by madaco
Fri Mar 09, 2018 8:00 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1965: "Background Apps"
Replies: 33
Views: 7023

Re: 1965: "Background Apps"

Ok, but what if I have about 200 Firefox tabs open on my iOS device? Does that use battery faster?
by madaco
Thu Feb 22, 2018 12:33 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1958: "Self-Driving Issues"
Replies: 147
Views: 14201

Re: 1958: "Self-Driving Issues"

So you're wondering if Cueball is "grey tribe" because he forgets that most people aren't murderers because, well, people could murder so you've gotta plan for that, which is thinking typical of security professionals who are usually "grey tribe"? Approximately, yeah. (Caveats: ...
by madaco
Wed Feb 21, 2018 10:49 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1958: "Self-Driving Issues"
Replies: 147
Views: 14201

Re: 1958: "Self-Driving Issues"

"grey tribe" ? First hit on Bing says they're "a libertarian-minded tribe of of live-and-let-livers". So, I agree. "?" (I'm also doing that head-tilt thing your dog does, here.) I, remembered something wrong, and am now confused about where I saw something. By grey tri...
by madaco
Wed Feb 21, 2018 6:50 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1958: "Self-Driving Issues"
Replies: 147
Views: 14201

Re: 1958: "Self-Driving Issues"

"I guess it's just that most people aren't murderers." "Oh, right, I always forget." Is somewhat relatable, but not in a "constantly worried" sense so much as a "how to design things around such a risk" sense. Does it make sense to think of that as somewhat of...
by madaco
Mon Sep 04, 2017 7:03 pm UTC
Forum: Mathematics
Topic: "multi-dimensional" analogy to linear orders?
Replies: 1
Views: 1610

Re: "multi-dimensional" analogy to linear orders?

by the '("preorder" might be replaced with a slightly stronger requirement? I am not sure.)' I think I mean that it might make sense to require it be a total preorder. The ones constructed from sets of points points in a finite dimensional vector space with the usual inner product all have...
by madaco
Thu Aug 31, 2017 4:40 am UTC
Forum: Mathematics
Topic: "multi-dimensional" analogy to linear orders?
Replies: 1
Views: 1610

"multi-dimensional" analogy to linear orders?

(If this post is tl;dr , the lines that just have a few underscores on them and nothing else are places that I think could be convenient to stop reading at, and I would appreciate getting a response to any portion of this post.) I was trying to either find an existing description of, or come up with...
by madaco
Sat Aug 12, 2017 9:05 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1875: Computers vs Humans
Replies: 24
Views: 6349

Re: 1875: Computers vs Humans

OK, but,

Computers not only do not care, they have not, as of yet anyway, been /able/ to care.

I don't see how "not caring" would be something that humans surpass computers at.

To the contrary, humans surpass computers at caring.
by madaco
Fri Jul 21, 2017 10:37 pm UTC
Forum: Mathematics
Topic: Help with a recurrence relation, related to partitions, and related to random infinite permutations
Replies: 6
Views: 2582

Re: Help with a recurrence relation, related to partitions, and related to random infinite permutations

First, thank you for your interest. In the distributions I am looking at, the probability that, given that the first m elements of the permutation form a permutation themselves, the probability that the next n elements after the first m form a permutation, is the same as the probability that the fir...
by madaco
Fri Jul 21, 2017 2:37 am UTC
Forum: Mathematics
Topic: Help with a recurrence relation, related to partitions, and related to random infinite permutations
Replies: 6
Views: 2582

Re: Help with a recurrence relation, related to partitions, and related to random infinite permutations

Oh wow, yes, that is very helpful! You have my gratitude. I am not really familiar with convolutions, but I have learned some about the laplace transform, and have some idea of what the fourier transform is like. Also I think I had seen that the product of two power series as a power series has the ...
by madaco
Thu Jul 20, 2017 4:18 am UTC
Forum: Mathematics
Topic: Determining line of sight over time
Replies: 30
Views: 5405

Re: Determining line of sight over time

I wonder if it might be possible to transform the problem into a version where they are stationary, but the location/movement of everything else gets warped. If we assign both of them a "mass" of 1, then the "center of mass" should be their midpoint, and because they are moving i...
by madaco
Tue Jul 18, 2017 6:41 am UTC
Forum: Mathematics
Topic: Help with a recurrence relation, related to partitions, and related to random infinite permutations
Replies: 6
Views: 2582

Help with a recurrence relation, related to partitions, and related to random infinite permutations

Hi, I am looking at defining a function a(n) in terms of another function f(n), with a(n) defined as: a(n) = f(n) - ∑ i=1 n-1 ( f(i)*a(n-i) ) I have noticed that for some functions f, the sum of a(n) over positive integers n goes to 1. I have proved this for f(n)=1/(n+1) , as well as for f(n) = c , ...
by madaco
Wed Jul 05, 2017 3:21 pm UTC
Forum: Mathematics
Topic: Looking for practice problems for algebra ?
Replies: 8
Views: 2539

Re: Looking for practice problems for algebra ?

Uh,

Which algebra?

Do you mean like, "solve for x" or like, "prove that the degree of x divides the degree of the group", or something else?
by madaco
Mon Jun 19, 2017 6:20 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1852: "Election Map"
Replies: 30
Views: 5877

Re: 1852: "Election Map"

What if, we took some political observer, with some set of positions, and checked how the average positions of each district compared to those of that observer, at 2 (or more) different times, and used that to determine some notion of "relative velocity", and then chose levels of red or bl...
by madaco
Fri Jun 09, 2017 8:24 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1844: "Voting Systems"
Replies: 83
Views: 10252

Re: 1844: "Voting Systems"

One idea which I had, which I assume is entirely impractical, but which I think might be good if it could be implemented in practice, is Assume that each person/voter has a vNM utility for each candidate. Normalize each voter's utility function such that their first choice has a utility of 1, and th...
by madaco
Thu Jun 08, 2017 6:14 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1844: "Voting Systems"
Replies: 83
Views: 10252

Re: 1844: "Voting Systems"

If you cannot (or will not) answer the question, then trying to decide on a voting system is just partisan politics, designed to promote whatever agenda you have at the moment. No, because the reason I will not answer the question is that you've sucked out all of the relevant details and oversimpli...
by madaco
Tue May 30, 2017 5:00 pm UTC
Forum: Mathematics
Topic: What would happen if $-1 bills were minted?
Replies: 20
Views: 5025

Re: What would happen if $-1 bills were minted?

Here is a variation on the idea: Imagine a world where anyone can create a dollar from nothing, but doing so causes a number associated with oneself to become $1 more negative, and this number can be observed by looking at the person, and any dollar created this way indicates what this number was wh...
by madaco
Tue May 23, 2017 6:41 pm UTC
Forum: Mathematics
Topic: Interesting question regarding Fermat nested radicals
Replies: 9
Views: 2832

Re: Interesting question regarding Fermat nested radicals

Are you looking to prove that it converges, efficiently calculate approximations to it, or find a closed form expression for it?

I think I've convinced myself that it converges (but I might have made a mistake in my reasoning).
by madaco
Fri May 12, 2017 6:47 am UTC
Forum: Mathematics
Topic: ONAG: "Surreal Numbers" make a field?
Replies: 10
Views: 3543

Re: ONAG: "Surreal Numbers" make a field?

I'm still rather stuck on how the surreals are closed under multiplication, class or no. Does anybody have any advice? Theorem 8. (i) If x and y are numbers, so is xy. The proof is given in On Numbers and Games , by John H. Conway. What part of the proof is the sticking point? When they called the ...
by madaco
Thu May 11, 2017 10:30 pm UTC
Forum: Science
Topic: Why haven't any animals evolved wheels?
Replies: 22
Views: 5069

Re: Why haven't any animals evolved wheels?

How would these wheels generate motion? If you had another spinning wheel, you could use gears, of course, but that doesn't let you get started. It seems easier to combine many small parts that pull or push a little into a larger part that pulls or pushes more, than to take many small parts that cau...
by madaco
Sun May 07, 2017 3:38 pm UTC
Forum: Religious Wars
Topic: Is 1 prime?
Replies: 30
Views: 16079

Re: Is 1 prime?

I think the real question is whether the zero ring is a field, and whether 1 belongs with the prime powers. The characteristic of the field of size p^k is p. If 1 is a prime power, then it is p^0 for every p. So, if the field of one element were to exist, shouldn't it have every characteristic or so...
by madaco
Wed May 03, 2017 6:41 am UTC
Forum: Fictional Science
Topic: In scientific's definition, in a fantasy world would a beastman or an elf be considered the same species?
Replies: 24
Views: 6498

Re: In scientific's definition, in a fantasy world would a beastman or an elf be considered the same species?

(But, actually, the concept of Ring Species confuses things, too.) That article says "The textbook examples of ring species, including the circumpolar herring gull complex, the greenish warbler of Asia, and the Ensatina salamanders of America, have all been challenged, so ring species are at b...
by madaco
Mon May 01, 2017 8:29 pm UTC
Forum: Mathematics
Topic: Halting Problem
Replies: 208
Views: 25502

Re: Halting Problem

main(input: file) {  if willHalt(program: file, data: file) {    while true {}   // infinite loop  }}  This program takes an input file, called “file”. Then it calls the “willHalt” program. The “willHalt” program takes two parameters which are both files. One is a program and one is a data fil...
by madaco
Sun Apr 23, 2017 12:59 am UTC
Forum: Science
Topic: Lay question about entropy
Replies: 29
Views: 5078

Re: Lay question about entropy

I think they meant something like (and I'm going to say this very poorly) that even if the "time progressing" function is a bijection, that if some macrostates have more possible microstates than others, that the output of the function will be a microstate of a macrostate with more possibl...
by madaco
Fri Apr 21, 2017 9:43 am UTC
Forum: Science
Topic: Why do humans see themselves as different from animals?
Replies: 35
Views: 7554

Re: Why do humans see themselves as different from animals?

Humans ask why humans see themselves as different from animals. "It is customary to insist that man resembles the other creatures. Yes; and that very resemblance he alone can see. The fish does not trace the fishbone pattern in the fowls of the air, or the elephant and the EMU compare skeletons...
by madaco
Sun Mar 19, 2017 5:11 am UTC
Forum: Computer Science
Topic: A Category of problems
Replies: 1
Views: 2671

Re: A Category of problems

Alright, so apparently ~217 people have viewed this, but none have decided to respond. I am not sure if this is because what I said was uninteresting, or because it was unclear. I don't know which one to hope for. __ A reduction of a problem to the empty problem would be a solution to the problem. I...
by madaco
Fri Mar 17, 2017 4:18 am UTC
Forum: Science
Topic: Free Will
Replies: 161
Views: 19048

Re: Free Will

Err, Wouldn't the standard response to that be that the soul is what we are referring to as "Fred" when we say that "Fred has/doesn't-have 'free will' " ? Then we just examine the soul's mechanism. It's funny how susceptible the soul's decisionmaking process is to the external w...
by madaco
Fri Mar 17, 2017 4:10 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 608
Views: 73063

Re: Planet's spin

in 4d space I think there can be 2 axes of rotation which are at independant speeds. Idk how many dimensions you need for 3 axis. I'm guessing 6 spatial dimensions? The idea of an axis of rotation only works in 3D space. That's because if things are moving round in a circle in 2 of the dimensions, ...
by madaco
Thu Mar 16, 2017 9:01 am UTC
Forum: Science
Topic: Free Will
Replies: 161
Views: 19048

Re: Free Will

If this putative soul were "outside" (not part of) the entity, then the soul would be a puppetmaster, and Fred would just be dancing to his soul's strings. Fred himself wouldn't have free will. Err, Wouldn't the standard response to that be that the soul is what we are referring to as &qu...
by madaco
Thu Mar 16, 2017 8:56 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 608
Views: 73063

Re: Planet's spin

in 4d space I think there can be 2 axes of rotation which are at independant speeds.

Idk how many dimensions you need for 3 axis. I'm guessing 6 spatial dimensions?
by madaco
Wed Mar 15, 2017 12:54 am UTC
Forum: Computer Science
Topic: A Category of problems
Replies: 1
Views: 2671

A Category of problems

I'm not sure if this goes here or in the fleeting thoughts section, or maybe even in the math subforum, but this is my best guess. As always, I expect that this is either not useful, or is already known about, or a more useful version is already known, but I don't know where to find it. I'm not sure...
by madaco
Thu Mar 09, 2017 4:43 pm UTC
Forum: Science
Topic: Free Will
Replies: 161
Views: 19048

Re: Free Will

So, is it just me not understanding, or does many worlds seem rather like modal realism?
by madaco
Wed Mar 08, 2017 7:02 am UTC
Forum: Science
Topic: What is the Biggest Non-Repeating Molecule?
Replies: 39
Views: 7930

Re: What is the Biggest Non-Repeating Molecule?

[Edit: I am writing this in order] To try to get at the idea of "repeating" which is [edit: maybe] meant, I get the impression that they don't want the molecule to be a chain of "blocks" where each "block" is from some structured family. (By a "block" I mean s...
by madaco
Fri Jan 06, 2017 11:10 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1782: "Team Chat"
Replies: 84
Views: 13479

Re: 1782: "Team Chat"

That'd mean limiting the total feature set to whatever you included in your federated standard. There's no incentive to do that, and no compelling incentive for a user to prefer your service on the basis of your choice to do so. Then, of course, your universal standard is still only as universal as...
by madaco
Fri Jan 06, 2017 8:17 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1782: "Team Chat"
Replies: 84
Views: 13479

Re: 1782: "Team Chat"

Aren't Skype and Slack proprietary though? This seems to be acting like switching to them is progress in some way, but I don't see what would be better about skype or slack? Is it the voice chat, or sub-topics or something? They have a bunch of nice features that IRC doesn't provide out of the box....

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