Rationality Quotes August 2012

Alejandro1

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Here's the new thread for posting quotes, with the usual rules:

Please post all quotes separately, so that they can be voted up/down separately. (If they are strongly related, reply to your own comments. If strongly ordered, then go ahead and post them together.)
Do not quote yourself
Do not quote comments/posts on LW/OB
No more than 5 quotes per person per monthly thread, please.

I notice that I am meta-confused...

Supposing that all possible universes 'exist' with some weighting by simplicity or requirement of uniformity, does not make me feel less fundamentally confused about all this;

Shouldn't we strongly expect this weighting, by Solomonoff induction?

Allow me to paraphrase him with some of my own thoughts.

Dang, existence, what is that? Can things exist more than other things? In Solomonoff induction we have something that kind of looks like "all possible worlds", or computable worlds anyway, and they're each equipped with a little number that discounts them by their complexity. So maybe that's like existing partially? Tiny worlds exist really strongly, and complex worlds are faint? That...that's a really weird mental image, and I don't want to stake very much on its accuracy. I mean, really,... (read more)

3A1987dM14y

Probability is not obviously amount of existence.