gjm comments on New Year's Prediction Thread (2014) - Less Wrong

9 Post author: Thomas 01 January 2014 09:38AM

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Comment author: gjm 01 January 2014 08:20:53PM 3 points [-]

a joke about the conjunction fallacy.

Yep, exactly. (More precisely, bramflakes was making a point about the conjunction fallacy and I was reinforcing it with a bit of irony. Trying to, anyway.)

Comment author: [deleted] 03 January 2014 07:42:23PM *  0 points [-]

I'm not sure the conjunction fallacy should be of operational importance to the giving of predictions, unless there is betting involved. What should I do instead, simply state "Bitcoin will rise to $5,000."? That's completely uninteresting, and I fail to see how anyone could judge that prediction based on anything other than my credentials and their prejudices. Saying "Bitcoin will rise to $5,000 due to X." gives people a window into my thinking and lets them judge for themselves whether my assessment is likely.

Comment author: [deleted] 03 January 2014 08:38:42PM 4 points [-]

You could say “Bitcoin will rise to $5,000 (for example, due to X).”

Comment author: gjm 03 January 2014 08:04:01PM 2 points [-]

There's nothing at all wrong with making specific predictions. But it should be done with care, in view of our brains' tendency to infer higher rather than lower probability when they see something more specific.