What are the Flat Earthers going to prove unless they try and fail to sail off the edge of the earth. Whether it is flat or round according to the charts they can sail all over the earth. When Columbus made it back to Spain he reported India was a lot closer than previously thought. It took a different person to finally figure out that Columbus had not made it to India, rather found a new continent between Spain and India. Maybe I am the one confused but the Flat Earth theory doesn’t make sense to me.