17 Apr '11 18:11>3 edits
Originally posted by Andrew HamiltonThat surely depends on what you mean by proof. Do you mean "proof" as a lawyer would mean by proof, or proof as a logician / mathematician would mean by "proof"?
“...No, we have science based measurements. We have no proof. ...”
if a measurement shows that something is millions years old leaving no reasonable/valid doubt and with no evidence to the contrary (no evidence must be ignored) then how is that not proof.
As I argued with josephw; we cannot prove, in a logical sense, that all the times gravity has been shown to behave in the manner we expect aren't just special, fluky, cases of some other phenomenon that could manifest in our next measurement.
We have persuasive evidence of course - damned persuasive evidence, and it would be crazy to argue against it; but that aside, we don't actually have a formal, logical, and irrefutable proof of this. It is this sort of proof that "God" doesn't exist that fundies are demanding of us atheists before our positions are reasonable to them. - unfortunately!