It’s true. You can tell people you read it on the Internet.
Why do some people find it so hard to accept that the Earth is flat?
Because there are photos from space.
They faked the moon landing, so why not take a few photos with a fisheye lens while they were up there?
You can see the horizon curve.
You have never heard of the Hering Illusion, have you?

Contributors to Wikimedia projects. (2024). Hering illusion – Wikipedia. Available at: https://en.wikipedia.org/wiki/Hering_illusion (Accessed: 7 October 2025)