Dear Stefan,
I'm a first timer. This is a response to your invitation for comment from your program of April 1, 2018 ('Why I Was Wrong About Flat Earth'). I wrote a succinct (really), 1005 word referenced commentary, using simple math with uncomfortable proofs and mind experiments that will make ball earthers really sweat. Would you accept these proofs, and take note of them? I recommend also a guest of high caliber. Wonderful work you are doing.
Best wishes,
Jim Thornton
DearStefan.docx