when you get to the scale of moons and planets (and larger objects such as asteroids), nature begins to favor spherical shapes

from my point of view, I could concede that I don't really know enough to prove the existence of a spherical earth over flat earth theory, however it seems like proponents of flat earth theory, whilst criticizing round earthers for failing to actually look at any evidence, are themselves given to basing their assumptions on an extremely limited set of evidence. What "evidence" they do provide tends to be photographs. The majority of arguments for flat earth theory rely mostly on visual perceptions of the earth and cosmos to make the case.