In article ,
writes:
As far as I can tell, your question is essentially "Is this probability
exactly zero or merely very tiny?" I'd say the answer is "merely very
tiny." But that's true for pretty much any statistical statement
in science. Hypotheses are essentially never ruled out with
strictly 100% probability.

Thanks, Ted.

I guess I was trying to ask whether magnetic monopoles are in the
same category as, say, a fourth lepton family: ruled out unless we
have a lot of physics wrong. As I understand your reply, that is not
the case. Upper limits show that monopoles must be very rare, but
there is no reason to rule out their existence.

The question about the Cabrerra experiment was whether anyone had
identified an instrumental flaw that could explain the one detection.

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Steve Willner Phone 617-495-7123
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