Rationality Quotes April 2014

elharo

Another month has passed and here is a new rationality quotes thread. The usual 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Do not quote yourself.
Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson.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.

And one new rule:

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 Do not quote with only a name.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 has passed and here is a new rationality quotes thread. The usual 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Do not quote yourself.
Do not quote from Less Wrong itself, HPMoR, Eliezer Yudkowsky, or Robin Hanson.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.

And one new rule:

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 Do not quote with only a name.

Can't be. You can't draw a distinction within a category by separating it into two subcategories one of which is empty.

The category being separated is "disciplines", which divides into "BS" and "non-BS". "Academic" disciplines are thus a further subcategory of "BS" disciplines.

Actually, "academic" disciplines would probably be a subcategory of "disciplines" which is largely but not entirely subsumed by "BS" disciplines, but I don't usually demand that level of precision from witticisms.

[For the record, separating a category into two subcategories and proving one of them empty is just another way of proving the original category is identical with the non-empty subcategory. It is, indeed, valid from a technical perspective.]

2A1987dM12y

You can, though it's usually useless; but it also depends on whether that subcategory is always necessarily empty or it happens to be empty now but in principle it could be non-empty. (But it's still a fallacy of grey: even if all academic disciplines were, in fact, BS disciplines, some disciplines may still be less BS than others.)

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Rationality Quotes April 2014

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Rationality Quotes April 2014

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