To close this out from my side, I would say this. As a scientist, I don't claim to be certain about anything except those things for which there is overwhelming reliable evidence. I am certain that the sun will rise again tomorrow, although there is a tiny probability it won't. I am certain that the sky will be blue on a clear day as a result of Rayleigh scattering; though there is a small probability that something terrible might happen. I don't put much stock in "-isms" - all "-isms" are human inventions, the babble of a child struggling to express a difficult idea in an even more complex world. I put stock in what i observe, what explanations hold up to repeated attempted to invalidate them, and try to develop new knowledge for the betterment of our species.