Search found 161 matches

by HonoreDB
Wed Feb 15, 2012 6:13 pm UTC
Forum: Books
Topic: Harry Potter and the Methods of Rationality
Replies: 1036
Views: 414790

Re: Harry Potter and the Methods of Rationality

That's pretty clever. I think the heart of it is the idea that the final loop should seem like it could be the first loop, even though it's improbable. Of course, the whole idea of using an algorithm seems kind of cargo-cultish, since the Time-Turner is said not to operate by creating a series of ti...
by HonoreDB
Mon Feb 06, 2012 5:16 pm UTC
Forum: Logic Puzzles
Topic: Making Waves
Replies: 29
Views: 7170

Re: Making Waves

First, we stab the Evil Wizard Mathematician with the jack knife. Surely the only truly poetic way to kill the Evil Mathematician would be to dance the dot of the laser pointer on him, thus causing him to be pounced on by infinitely many kittens. Wrap the string around the paint roller at a 45 degr...
by HonoreDB
Mon Feb 06, 2012 4:57 pm UTC
Forum: Books
Topic: Harry Potter and the Methods of Rationality
Replies: 1036
Views: 414790

Re: Harry Potter and the Methods of Rationality

Quirrell doesn't really believe in the distinction between "being a healer" and "pretending to be a healer" anyway. If you're really desperate for a MoR fix, I'm selling methadone cheap in my signature. I'll even give you a hit for free . *laughs evilly* Or we could just all spec...
by HonoreDB
Sat Dec 03, 2011 11:30 pm UTC
Forum: Books
Topic: Harry Potter and the Methods of Rationality
Replies: 1036
Views: 414790

Re: Harry Potter and the Methods of Rationality

Chapter 10, the sorting. The hat's honesty is immediately called into question, though--it could be trying to get the conversation over faster, or protecting the privacy of former student Tom Riddle.
by HonoreDB
Tue Nov 29, 2011 4:51 am UTC
Forum: Logic Puzzles
Topic: Coins in envelopes
Replies: 9
Views: 2725

Re: Coins in envelopes

Well done t1mm01994, mfb and skeptical scientist. And yes, you may reuse it.
by HonoreDB
Mon Nov 28, 2011 10:12 pm UTC
Forum: Logic Puzzles
Topic: Coins in envelopes
Replies: 9
Views: 2725

Coins in envelopes

This problem literally came to me in a dream the night before last, and I've only just solved it. I've changed the imagery from deer in a forest to coins in envelopes for ease of comprehension. Hope you enjoy. You're spying on Alice and Bob, both of whom are perfect mathematicians. Alice shows Bob a...
by HonoreDB
Wed Nov 02, 2011 4:19 pm UTC
Forum: Logic Puzzles
Topic: Seven Lines and Seven Points
Replies: 18
Views: 4313

Re: Seven Lines and Seven Points

Well, if the rules were repeated incorrectly to create a seemingly impossible problem, there's no shame in a 169-ish solution.

Groan-inducing hint:
Spoiler:
It's never specified that the lines and points must be distinct.
by HonoreDB
Wed Nov 02, 2011 4:05 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0972: "November"
Replies: 131
Views: 57187

0972: "November"

Image

Title text: "November marks the birthday of Charles Schulz, pioneer of tongue awareness."

So there's a Peanuts cartoon with the same joke? I bet it's Lucy. Lucy is somehow Black Hat Guy as a child.
by HonoreDB
Sat Oct 29, 2011 2:52 pm UTC
Forum: Logic Puzzles
Topic: Choice by coin flipping
Replies: 28
Views: 5343

Re: Choice by coin flipping

See also this thread. I'm curious whether jaap reconstructed the same solution from scratch, or just remembered.
by HonoreDB
Tue Oct 25, 2011 10:43 pm UTC
Forum: Books
Topic: Harry Potter and the Methods of Rationality
Replies: 1036
Views: 414790

Re: Harry Potter and the Methods of Rationality

Levi wrote:Could you link to your Hamlet fanfic if/when you write more of it?


It's finished! I'm publishing it as an e-book, because Shakespeare is public domain and I can do that. Hope you enjoy!
by HonoreDB
Fri Sep 23, 2011 1:22 pm UTC
Forum: Logic Puzzles
Topic: Iocane Powder
Replies: 3
Views: 4663

Re: Iocane Powder

You might enjoy the story The Purloined Letter , one of the first modern detective stories. A relevant excerpt: "...But he perpetually errs by being too deep or too shallow, for the matter in hand; and many a schoolboy is a better reasoner than he. I knew one about eight years of age, whose suc...
by HonoreDB
Mon May 23, 2011 4:32 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0902: "Darmok and Jalad"
Replies: 125
Views: 36344

Re: 0902: "Darmok and Jalad"

tvtropes will ruin the vocabulary of entire civilizations.
by HonoreDB
Mon Apr 18, 2011 4:36 am UTC
Forum: Logic Puzzles
Topic: Who am I?
Replies: 16
Views: 5095

Re: Who am I?

Suppose the number were odd. Therefore it has 2 digits. Therefore it can't have three digits, so it's a perfect square. Therefore it can't be one more than a perfect square, so it's the product of two consecutive odd integers. But a product of two consecutive odd integers can't ...
by HonoreDB
Fri Apr 15, 2011 5:32 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0886: "Craigslist Apartments"
Replies: 137
Views: 49588

Re: 0886: "Craigslist Apartments"

The most annoying part of searching for city apartments on Craigslist isn't the blatantly unsuitable listings, or the constantly reposted ones. It isn't the ones that describe themselves as "Northwest Manhattan," then turn out to be one hundred miles northwest of Manhattan. It isn't the on...
by HonoreDB
Fri Apr 08, 2011 6:56 am UTC
Forum: Logic Puzzles
Topic: Troll math: x^x^x^...=2=4
Replies: 10
Views: 4565

Re: Troll math: x^x^x^...=2=4

To make the fallacy more obvious, change it to

x + x + x + ... = 2
x + (x + x + x + ...) = 2
x + (2) = 2
x = 0
by HonoreDB
Tue Apr 05, 2011 7:16 am UTC
Forum: Logic Puzzles
Topic: Box Paradox
Replies: 13
Views: 2823

Re: Box Paradox

Two more intuitive ways to explain it: In 2 of the 3 boxes, the two coins are the same color. So if you always guess that the second coin will be the same color as the first, you'll be right 2/3 of the time. or Each of the 3 gold coins is in a box with another coin. For 2 of the 3 gold coins, that o...
by HonoreDB
Wed Mar 30, 2011 4:19 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0879: "Lamp"
Replies: 151
Views: 37362

Re: 0879: "Lamp"

Can't believe xkcd beat Oglaf to this idea.

Zero one two three four five six seven eight nine ten eleven.

Sunday Monday Tuesday Wednesday Thursday Friday Saturday.
by HonoreDB
Tue Mar 29, 2011 12:46 am UTC
Forum: Science
Topic: Glass fragments reassembling themselves by chance
Replies: 17
Views: 2572

Glass fragments reassembling themselves by chance

I knock a glass off a table. It falls, and shatters into a specific arrangement of fragments, each of which contains a specific amount of heat energy in a specific configuration, and so on. While the fact that it would shatter was predictable in advance, if we describe the exact outcome specifically...
by HonoreDB
Thu Mar 03, 2011 3:20 am UTC
Forum: Books
Topic: Harry Potter and the Methods of Rationality
Replies: 1036
Views: 414790

Re: Harry Potter and the Methods of Rationality

Whoever went to the meetup: Are there any spoiler type information you can give us? Nothing earth-shattering, of course, but there are some minor things you may not have guessed. Word of God that may not ever show up in the text: [*]If Harry and Draco's genetic theory is true, squibs are preval...
by HonoreDB
Wed Mar 02, 2011 12:10 am UTC
Forum: Books
Topic: Harry Potter and the Methods of Rationality
Replies: 1036
Views: 414790

Re: Harry Potter and the Methods of Rationality

Levi wrote:Could you link to your Hamlet fanfic if/when you write more of it?


Definitely.
by HonoreDB
Tue Mar 01, 2011 5:35 am UTC
Forum: Books
Topic: Harry Potter and the Methods of Rationality
Replies: 1036
Views: 414790

Re: Harry Potter and the Methods of Rationality

:( I live way too far away. Oh, hey, it was yesterday. How did it go? (I can tell you live far away because it was actually still going on when you posted this. Maybe you could organize one on your continent?) It was fun! To start off, we all sorted ourselves into Houses by means of colored dots on...
by HonoreDB
Mon Feb 28, 2011 5:31 pm UTC
Forum: Logic Puzzles
Topic: The hardest maze in the world
Replies: 20
Views: 6861

Re: The hardest maze in the world

It would have a solution iff the formal system involved is inconsistent.
by HonoreDB
Mon Feb 28, 2011 5:27 am UTC
Forum: Logic Puzzles
Topic: Unsolvable Logic Problem!
Replies: 11
Views: 5786

Re: Unsolvable Logic Problem!

Does the book itself hint that you should think of it as a phone grid, or was that just your suggestion for communicating the answer? I suspect it's the latter, which means it's a sort of puzzle I'm not very good at. If we ARE supposed to be thinking of it as a number grid, then Treat it as separate...
by HonoreDB
Mon Feb 28, 2011 5:16 am UTC
Forum: Logic Puzzles
Topic: Space-themed riddle - win a puzzle!
Replies: 12
Views: 4940

Re: Space-themed riddle - win a puzzle!

Don't understand this one at all. Twitter may not have been the best medium.
by HonoreDB
Mon Feb 28, 2011 1:28 am UTC
Forum: Books
Topic: Harry Potter and the Methods of Rationality
Replies: 1036
Views: 414790

Re: Harry Potter and the Methods of Rationality

I probably am. It could be fun.
by HonoreDB
Fri Feb 18, 2011 2:18 am UTC
Forum: Logic Puzzles
Topic: Tiling irregular blocks
Replies: 8
Views: 1852

Re: Tiling irregular blocks

Oh, so I was misunderstanding both your post and phlip's comment. Well, then replace "While N<=10" with "While num_greenhouses<=N" in my naive algorithm.
by HonoreDB
Fri Feb 18, 2011 12:02 am UTC
Forum: Logic Puzzles
Topic: Tiling irregular blocks
Replies: 8
Views: 1852

Re: Tiling irregular blocks

That's what I assumed.
by HonoreDB
Thu Feb 17, 2011 12:51 am UTC
Forum: Logic Puzzles
Topic: Tiling irregular blocks
Replies: 8
Views: 1852

Re: Tiling irregular blocks

Find a tiling that uses the minimum number of greenhouses. Presumably you mean "costs the minimum amount." Otherwise the answer is always 1. Simple algorithm, probably wrong: Start with a single greenhouse stretching from the top left strawberry to the bottom right strawberry. While N<=10...
by HonoreDB
Fri Feb 11, 2011 5:43 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0859: "("
Replies: 216
Views: 59432

Re: 0859: "("

This comic's text (which is (An unmatched left parenthesis creates an unresolved tension that will stay with you all day) creates an unresolved tension that will stay with you all day.
by HonoreDB
Wed Feb 09, 2011 9:12 pm UTC
Forum: Logic Puzzles
Topic: The hardest maze in the world
Replies: 20
Views: 6861

Re: The hardest maze in the world

That's correct. It's called Legendre's conjecture. Edit: Your solution is basically right, but just to be clear, That's an inclusive between--if n^2 + 1 is prime, then it's not a solution. You can see that in the gap between 2^2 and 3^2: even if 7 weren't prime, the primeness of ...
by HonoreDB
Wed Feb 09, 2011 7:32 pm UTC
Forum: Logic Puzzles
Topic: The hardest maze in the world
Replies: 20
Views: 6861

Re: The hardest maze in the world

One more. Couldn't help myself. The Kitty Maze Can the kitty escape out the bottom of the maze? Object at (R,C): If R=0: If C=0: \ If C=1: Kitty! Else: Blank If R=1: If C is a perfect square: \ Else: = If R=C+1: If C-1 is a perfect square: | Else: \| If R=2: | If R>C+1: Blank If (R-1) is a factor of...
by HonoreDB
Wed Feb 09, 2011 3:41 am UTC
Forum: Logic Puzzles
Topic: The hardest maze in the world
Replies: 20
Views: 6861

Re: The hardest maze in the world

Well, that was fast.
by HonoreDB
Wed Feb 09, 2011 3:24 am UTC
Forum: Logic Puzzles
Topic: The hardest maze in the world
Replies: 20
Views: 6861

Re: The hardest maze in the world

That is really clever! It made me feel like creating a variant. The Puppy Maze If a puppy starts at 0,0 of the following maze, is it possible for it to travel arbitrarily far down? Object at (R,C): R even: C equals R: \ C prime: blank C composite: = R odd: C odd: \ C even: = The maze starts like thi...
by HonoreDB
Thu Jan 06, 2011 12:31 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0843: "Misconceptions"
Replies: 186
Views: 42372

Re: 0843: "Misconceptions"

Consider this: What is proof when it comes to historical events? Sometimes, we'll have archaeological evidence to support them. Other than that, though? All we have is our sources. So what makes one source trustworthy and another not? It's a matter of bias. FourTael, looks like you've found a Fully...
by HonoreDB
Wed Dec 01, 2010 5:14 am UTC
Forum: Logic Puzzles
Topic: Secret Santa
Replies: 45
Views: 17915

Re: Secret Santa

...damn. Sorry. Really thought I had it.
by HonoreDB
Wed Dec 01, 2010 3:30 am UTC
Forum: Logic Puzzles
Topic: Secret Santa
Replies: 45
Views: 17915

Re: Secret Santa

This took over my brain for way too long. But I now have a physically feasible solution that doesn't require any math. Label N envelopes with the numbers 1 through N. Each person randomly and secretly picks a different envelope. Lay all the envelopes out on a table in a room. People enter the room a...
by HonoreDB
Mon Nov 29, 2010 3:02 am UTC
Forum: Logic Puzzles
Topic: Secret Santa
Replies: 45
Views: 17915

Re: Secret Santa

[*]No person gains any more information than the rules above provide regarding possible recipients of other people during the method. ie, each person considers all people except their own recipient and the person in question to be equally likely to be the recipient of each other person after the me...
by HonoreDB
Mon Nov 29, 2010 1:33 am UTC
Forum: Books
Topic: Harry Potter and the Methods of Rationality
Replies: 1036
Views: 414790

Re: Harry Potter and the Methods of Rationality

Levi wrote:I was just watching the first HP movie and I realized: When Harry finds out about the Sorcerer's Stone, he is going to be so fucking pissed.


Seriously. Nicholas Flamel, his wife, and Dumbledore have effectively killed everyone who died of old age in the past five hundred years.
by HonoreDB
Tue Nov 23, 2010 5:39 pm UTC
Forum: Your art and links
Topic: Your first line to your significant other
Replies: 0
Views: 3082

Your first line to your significant other

"Hey, Weiner! Come talk to me!" and other epic first lines of epic romances. I just started this site, based on an old idea my parents had (that's their first line). I'd love to get some xkcdian lines; right now it's heavy on the romance, sarcasm, and language, but there's a distinct and ...
by HonoreDB
Sun Nov 14, 2010 2:00 am UTC
Forum: Individual XKCD Comic Threads
Topic: 0808: "The Economic Argument"
Replies: 558
Views: 96691

Re: 0808: "The Economic Argument"

David, In our previous exchanges, I said that I could tell from what you were saying about culture that you had a negative view of sex, and were therefore conflating the two concepts Pfhorrest is trying to pick apart above. I looked you up to try to confirm this, and I did. To be clear, I'm not accu...

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