I don't care whether the Earth is round or flat or a shape beyond human comprehension.

I am just sincerely curious:
Let's say the Earth is, indeed, flat; whether you believe this or not is irrelevant. Isn't the historical mythos that you can just fall off the edge? Why haven't we found the edge and fallen off?

And how can we cross from one side of the earth to the other during travel?

I'm open to any theories at this point of clown world. Flat Earth may be true, or false, or well poisoning psyop. I just want to understand the way it functions in theory

While I'm here: why do the NASA photos show so much green? What is causing this green color from such a distance? I don't know anything about perspective or science but it's near impossible for me to believe that's actually what the earth would appear as from way up in space... Yet assuming they're faking it, how do they not have great minds in on the ploy who could fake it more realistically?

It's all kind of weird no matter how I try to look at it.