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[LINK] XKCD Comic #1236, Seashells and Bayes' Theorem

by Petruchio
10th Jul 2013
1 min read
32

-11

Personal Blog

-11

[LINK] XKCD Comic #1236, Seashells and Bayes' Theorem
19Viliam_Bur
11sixes_and_sevens
21JoshuaZ
11[anonymous]
5Adele_L
0Ben Pace
9Adele_L
4JoshuaZ
0JoshuaZ
7[anonymous]
6NancyLebovitz
0fractalman
5[anonymous]
1fractalman
2gjm
0A1987dM
0A1987dM
0JoshuaZ
4sixes_and_sevens
4William_Quixote
4A1987dM
6Emile
2hwrd
3gjm
4wedrifid
0gjm
4thomblake
3tim
-9wwa
0wwa
9tim
1wedrifid
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[-]Viliam_Bur12y190

I nominate this article for the most obvious Open Thread candidate of the month.

Reply
[-]sixes_and_sevens12y110

It seems to me that most people don't bother putting things on the Open Thread if it's more than five days old, and there isn't any other random tat outlet.

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[-]JoshuaZ12y210

I wonder how much of that is an issue of trivial inconvenience. Once the Open Thread is more than a few days old, locating where it is can take more work.

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[-][anonymous]12y110

The value of posting something to the Open Thread also decays rapidly away from the first and fifteenth of the month.

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[-]Adele_L12y50

It seems to me that most people don't bother putting things on the Open Thread if it's more than five days old,

Once the Open Thread is more than a few days old, locating where it is can take more work.

The value of posting something to the Open Thread also decays rapidly away from the first and fifteenth of the month.

Seems like we should have Open Threads more often.

Reply
[-]Ben Pace12y00

No, just a link to it on the welcome page, along with some other important pages... Like the various repositories, and Public Annoucnements.

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[-]Adele_L12y90

I think that would only solve this issue: "Once the Open Thread is more than a few days old, locating where it is can take more work."

There is significantly less visibility with posting in an already crowded thread, and that's the main reason people don't like posting in it after a few days. This is also a problem with the repositories and other similar pages. Maybe the current format is bad for this, and a different format would be better, in addition to a more prominent link.

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[-]JoshuaZ12y40

Well, it seems I've made an inadvertent test of this, although a very weak one, since I posted this to the open thread and got no responses. But I can't rule out people just finding it to be not that interesting.

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[-]JoshuaZ12y00

Why is that? I was under the impression that most people see new comments based on the recent comments display.

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[-][anonymous]12y70

Most of the time, imo, recent comments moves too quickly to keep track of actual new comments, particularly when HPMoR updates.

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[-]NancyLebovitz12y60

Making Light has a "see last 1000 comments" link which I find very useful. Granted, it's more useful there (relatively few active threads at the same time) than here, but it would still help.

Reply
[-]fractalman12y00

actually, I think the HPMoR comments don't show up in recent comments unless you're already looking at an HPMoR thread... Is it just some setting I randomly edited on my profile and don't remember editing?

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[-][anonymous]12y50

Go home, fractalman; you're drunk.

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[-]fractalman12y10

I wasn't drunk, I was sleep deprived. I DO admit that my mental capacity while sleep deprived looks a lot like the mental capacity of a drunk...but I happen to get dizzy and nauseous at the mere smell of alchohol, so the chance for me to be drunk is pretty slim, if not negligible.

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[-]gjm12y20

In case you're unaware of it, "Go home, X, you're drunk" is something of an internet meme; paper-machine wasn't making a serious accusation.

(One instance of this trope that's attached to stuff that might amuse a fair fraction of LW readers: Go home, evolution, you are drunk. (Actual title "WTF, Evolution?" but the GHYAD meme is in the "About" section at the right.)

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[-]A1987dM12y00

It isn't generally used with sentients, though.

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[-]A1987dM12y00

“Recent comments” shows recent comments on Main if you're on Main and recent comments on Discussion if you're on discussion.

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[-]JoshuaZ12y00

Ah, that makes sense.

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[-]sixes_and_sevens12y40

I almost never use this to observe new content.

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[-]William_Quixote12y40

I wonder if always having the most recent open thread at the top of the most recent comments sidebar would effectively pull open thread content into the open thread

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[-]A1987dM12y40

The most obvious place for this is the Rationality Quotes thread, and indeed it's there too.

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[-]Emile12y60

The formula he wrote is wrong, you'd need to switch P(I picked up a seashell) and P(I'm near the ocean) for it to be right.

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[-]hwrd12y20

I agree that the formula is wrong. I considered the possibility that it was sarcasm, but either way it's wrong.

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[-]gjm12y30

Either he's fixed it since the two of you wrote what you wrote, or you're wrong, or I'm terribly confused. It now says (with obvious abbreviations)

P(A|B) = P(B|A)P(A)/P(B)

which is correct.

Reply
[-]wedrifid12y40

Either he's fixed it since the two of you wrote what you wrote, or you're wrong, or I'm terribly confused.

Make that all four of us are wrong. Yes, it seems that the cartoon has been fixed. I quadruple checked the positions of those clauses when I was verifying nshepperd's claim, since it was surprising. I also observed at the time that it is fortunate that the image would be easy to fix even with my meagre gimp skills. Or MSPaint from windows 95 for that matter.

EDIT: The xkcd forum confirms our sanity and shows the original.

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[-]gjm12y00

The image in the forum shows the fixed version, at least for me right now. (Maybe it will for you too, if you clear your browser cache? Or maybe there's a copy of the old version elsewhere in the discussion.)

I think he should have put a note on the comic page acknowledging that he'd fixed a mistake.

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[-]thomblake12y40

He fixes things a lot. There is practically never a notice.

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[-]tim12y30

The old version is there if you scroll down.

Reply
[+]wwa12y-90
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A fun comic about seashells and Bayes' Theorem. http://xkcd.com/1236/