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Old 01-03-2012, 01:04 PM
Candyman74 Candyman74 is offline
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Quote:
Originally Posted by whc.03grady View Post
I mean "entitled to ignore" in the same sense that we're entitled to ignore someone who claims to have squared the circle. Rationality allows us to ignore propositions that are, well, irrational. If one assumes a contradiction, anything can be shown. So, we're allowed to dismiss contradictions; we can ignore them.

It looks like, in positing a situation wherein something is simultaneously P and not-P, the physicist has made a statement that entails a contradiction, and therefore anything whatsoever follows from it. The physicist's statement can, in principle, prove anything: that Caesar and my banker are the same person; that the moon is made of green cheese; that all equilateral triangles are equiangular triangles; that five is twenty more than 138; that a carrot is an alarm clock; that dogs bark. Anything. As such, AFAICT the physicist's statement is worthless and subject to be ignored.

That's what I meant.
Sure. OK. Go right ahead and ignore it. There's no disagreement here.