This is very interesting... I'd like to ad the thought that lead to this. Say there was a big bang of sorts (for the sake of arguement of course) and maybe the earth formed while spinning very rapidly and evolution still happened. Also, somehow the earth was pushed at an acceleration of 9.8 m/s/s or the gravitation from another object beneath the earth pulled on it or SOMETHING crazy that we haven't studied is reponsible.
Hmm... I'm really trying to come up with something that could work, but I do not really see how to make up for gravity. Maybe an object directly beneath the flat earth is pushing upwards and slowing the decent of our earth at 9.8m/s/s?
It doesn't really seem possible, but it would lead to some interesting ideas about how good the "proof" is from anything, and how to determine which proof is most plausible if somebody could come up with a non-religious based FE theory.