I wrote this comment on YouTube:
Your video model of the flat earth cannot adequately explain lunar or solar eclipses. There are also issues with the sun's size and movement from sunrise to sunset, as well as seasonal changes, in the flat earth model. While I will not toss the flat earth model outright, I am not convinced of it, either. There are too many uncertainties.
A relatively easy experiment is with the use of a weather type balloon, a camera, a cheap GPS tracker and a few more bits to round up a makeshift "space" camera. One can buy kits online for this experiment.
One thing I will not accept, however, is the notion that the moon gives off its own light, which is a notion also promoted by quite a few of those who espouse the flat earth model.