>fully scientific, supernatural-free bet Those descriptors are not synonyms. There are many, many ways to be unscientific without any pretension of the superna

>fully scientific, supernatural-free bet Those descriptors are not synonyms. There are many, many ways to be unscientific without any pretension of the supernatural. I think the word you wanted was to say "fully materialistic, supernatural-free bet". The definition of science given by Francis Bacon and carried through to the modern era is that that a hypothesis is not accepted as valid until it has been tested experimentally, and a hypothesis must be tested after it has been formed (to avoid the sharpshooter fallacy). Modern versions allow you to use math, but that's as far as it goes. In this case, cryonics is obviously not scientific, because its effectiveness has not been demonstrated with the scientific method -- and that is what science is!