I too, once thought the Flat Earth was sheer nonsense. That is, . . . until I attempted to examine the topic of FE more closely and approached the subject with an open impartial mind.
. . . My conclusion: The earth is indeed a flat, motionless plane just as the Bible (and our God-given senses) tell us!
Neither the Bible, nor my senses tell me the earth is flat. I know it's not by my own observations.
The FE model has a small sun and small moon circling over the flat earth. So instead of an orb that remains at approximately the same distance from our viewing perspective, the sun, in the FE, comes closer, closer, then overhead, then moves further, further, until it is lost from view, and the nighttime comes.
Question . . . Why does the sun appear to be the same size when far away, ie the horizon, as it does when it is close, ie overhead? The further something is the smaller it should appear, but the sun, in the FE model, does not appear that way. Why??
Why can I see an island that sits 60 miles offshore - well over the horizon - wait . . . wrong question . . . why can't I see it today? I've seen it before, I know it's there, but most days I cannot? Even when the air is so clear I can see fire stations in the local mountains, which are much further away? Of course, those times I've seen it, to varying degrees, those were by inversion layers. Why cannot I see the island on the clearest day? Why only on those few special days?
These are things I've seen.
Oh, and I've also been on top of those local mountains, and looked out over the see from 14,000 ft, and that plenty high to see not only the curve of the earth, looking left to right, but also that the horizon extends as a property of elevation, but there is still an horizon that is not seen over.
Personally observing a globe earth. I don't need anyone to tell me the earth is round, I can see that for myself.
Much love!