MrHen comments on Sunk Cost Fallacy - Less Wrong

30 Post author: Z_M_Davis 12 April 2009 05:30PM

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Comment author: steven0461 13 April 2009 09:20:52AM *  4 points [-]

There's also a sort of reverse sunk cost fallacy. Example: you're reading a book that's worth 8 hours of your time but only if you read all of it, and after 5 hours of reading you realize it's going to take another 5 hours to finish the book, so the original investment of 5 hours was a mistake, so to "correct" the mistake you stop reading when you can now get 8 hours' worth of time for only an additional 5 hour investment.

ETA: I googled "reverse sunk cost fallacy" and found this, which makes the same point.

Comment author: MrHen 14 April 2009 03:04:28PM 3 points [-]

This reminds me of the Dollar Auction. What happens if the estimate keeps getting pushed out? Are you willing to read the book forever?

I suppose if you keep messing up the estimate, the confidence in your next estimate will go down, which should tip the scales at some point.

Comment author: MrHen 15 April 2009 03:35:02PM *  1 point [-]

(Off-topic) In terms of karma, what should I take away when this comment gets a negative score? Do I need to expound on my point? Was my point invalid/stupid/inane/irrelevant?

Also, is there a kosher method for switching to off-topic discussion or is it something to avoid altogether?

(Edit) Hm. After asking about it, my comment was apparently modded up, so nevermind. Weird.

Comment author: jimrandomh 15 April 2009 04:20:09PM 4 points [-]

Also, is there a kosher method for switching to off-topic discussion or is it something to avoid altogether?

For small bits of off-topic discussion, no special action is required. For lengthy asides, you can start a new post (for lengthy topics) or use the monthly open thread (for smaller ones), leaving a link in the place where you would segue.

Comment author: thomblake 15 April 2009 04:06:18PM 2 points [-]

In my opinion, off-topic discussion should be fine since it will just get voted down and thus be below the threshold for people who only want to see on-topic stuff.

Or to put it another way, no, it's not fine.