Well then first off do you understand the math for gravity 100% along with its underlying structure which is the THEORY of General Relativity... Do you see there are only a few handfuls of people who can claim they do understand that stuff 100%, really most of us BELIEVE in gravity which is NOT science, it is RELIGION.

Next, have you watched Eric Dubays History of the flat earth on youtube, good place to start. I am not here to convince ANYONE the earth is flat or anything else, I just want to be a beacon that causes people to investigate the world and how it works because when I did EVERYTHING changed for me.
Side note: if you type in youtube search: "The History of Flat Earth" a bunch if videos that DEBUNK flat earth or mock flat earth show up first, then like 10 videos down is the video you asked for , hmmmm.....