Scientism is the idea that science is the ultimate path to knowledge and wisdom — the only sure path — and that the spiritual realm is a mirage.
Everything comes together in a message that includes a creation myth, a story of sin (ecological sin), a salvation story, and even resurrection and ascension.
In Copernicus’ day, the Earth was thought to be at the bottom of the universe, the “sump” where all the filth collected.
A skeptic might ask, “Couldn’t a more technologically advanced civilization develop new sources of fuel that require less mass?”
Curiously, Tyson has a future, quasi-religious myth of his own to promote: personal immortality through futuristic technology.