Also known as: 200 Proofs Earth is Not a Spinning Ball
Eric Dubay is among the most influential modern flat-Earth propagandists, distributing his free book "200 Proofs Earth is Not a Spinning Ball" and hundreds of videos that recycle horizon, water-level, and space-agency claims in aggressive list format. The claims below are paraphrased from his recurring talking points, for context and mapping, not quoted as endorsement or settled fact.
This index maps 50 recurring arguments to pages where you can test the globe prediction directly.