How I met the Superman

During an ongoing conversation concerning C.S. Lewis and Arthur C. Clarke, jordan179 asked

"I'd gather then that Lewis would have been opposed to transhumanism if the idea had been widely known at the time?"

My answer was this:

I cannot speak for Lewis. My own brief brush with transhumanists was an eye-opening affair. It was my first encounter with people who try to deck out scientists and engineers with the hairy coats of prophets or the canonical vestments of archbishops, and end up merely emb