Flatzoid’s diagram with a second star
Assume that each observer and both stars’ GPs are on the same line of longitude. The length of each line stays constant (Flatzoid’s “field of view maximum”) and the angles match what one observes in the real world.
Squeezable version of Eyes Wide Open’s horizon photo
A squeezable version of page 52 in Eyes Wide Open’s flat earth manifesto which contains an image which he claims to demonstrate a “perfectly flat horizon”.

