lukeprog comments on An Intuitive Explanation of Solomonoff Induction - Less Wrong
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The soldier in the probability section updates in the wrong direction. If you survived two shots to your helmet, then you were almost certainly not being shot at with a sniper rifle. For instance, my Mosin Nagant (a bolt-action 7.62x54mmR) will penetrate both sides of a WWII era infantry helmet (and presumably, a "soft target" in between) every single time (although, at a shorter range).
BTW, love the article.
Maybe Alex can clarify the wording there? I meant to indicate that the bullet glanced off the helmet (instead of "bouncing" off), because only a tiny part of the helmet was within the sniper's view.
I like this idea.
I actually read this as the shot glancing off the curve of the helmet due to angle, but since this seems to be a rational soldier it would indeed be much more elegant to have him use a helmet-stick probe.