Rationality Quotes July 2014

VAuroch

Another month, another rationality quotes thread. The rules are:

Please post all quotes separately, so that they can be upvoted or downvoted 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Do not quote yourself.
Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson. If you'd like to revive an old quote from one of those sources, please do so here.
No more than 5 quotes per person per monthly thread, please.
Provide sufficient information (URL, title, date, page number, etc.) to enable a reader to find the place where you read the quote, or its original source if available. Do not quote with only a name.

Another month, another rationality quotes thread. The rules are:

Please post all quotes separately, so that they can be upvoted or downvoted 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Do not quote yourself.
Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson. If you'd like to revive an old quote from one of those sources, please do so here.
No more than 5 quotes per person per monthly thread, please.
Provide sufficient information (URL, title, date, page number, etc.) to enable a reader to find the place where you read the quote, or its original source if available. Do not quote with only a name.

Charles II is said to have himself toyed with the philosophers, asking them to explain why a fish weighs more after it has died. Upon receiving various ingenious answers, he pointed out that in fact a dead fish does not weigh anything more.

— Robert Pasnau, "Why Not Just Weigh the Fish?"

I think Alistair might have mangled the story there. There does seem to be a Charles II/fish/weight story, but about a completely different weight - in water, not postmortem: https://gwern.net/doc/philosophy/epistemology/1948-oesper.pdf Fortunately, while the question Charles II posed in this version is considerably clunkier, the upshot remains the same, so there are much worse leprechauns...

(Although the sourcing here is still thinner than I'd like and may not be the original: no date is given, but Schönbein was born in 1799 and Charles II died in 1685, a... (read more)

6Gurkenglas12y

Well that's not fair, generating hypotheses that fit an observation is sometimes useful, as Harry&Draco did when finding some that fit magic getting weaker. The philosophers, when acting as oracles, should not have to entertain the possibility that the assumptions given to them are wrong.

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