If parent had been talking about chemistry or physiology or any subject that can be explored via controlled experimentation, I wouldn't have complained. Instead the topics were geological and evolutionary history, which seem very much not "empirical". Not that I suspect that those sciences are wrong in any sense, but words have meanings.
I misread gp as saying "flat Earth", and not "young Earth". My apologies. I would agree that even if we can point to things like nylonase or the speed of light coupled with known distances to stars, those are deduced facts. Whereas astronauts have empirically observed the spherical nature of earth.
