Very interesting. I've extracted a clip of that here for posterity: Source: https://www.youtube.com/watch?v=b6KnbI8cTwE I think also by extension that would mean he would exclude anything that he personally considers "absolutely ridiculous", such as seeing the curve from 500 feet, or JTolan showing the curve. Or anything with a curve. So here we've got numerous photos of the curve of the horizon from around 500 feet, based on the technique first proposed here by @Clouds Givemethewillies, and now with these excellent examples and advice from @Rory. So what could the response be from the Flat Earth community? We've seen before a consistent pattern of asking for evidence, being given evidence, and then rejecting that evidence on some spurious grounds. So I'm interested in what they will say to reject this.