Image 1 Caption: The cover art for the novella The Little Prince (1943) by Antoine de Saint-Exupery (1900--1944).
The Prince knows he lives in semi 2-dimensional spherical space: asteroid B 612.
But Earthlings have greater difficulty in believing the spherical Earth theory. Some still believe in the flat Earth theory.
Image 2 & 3 Caption: Statue of the Little Prince at Museum of The Little Prince in Hakone in Sengokuhara, Hakone, Kanagawa Prefecture, Japan. The museum is dedicated to the title character in the novella The Little Prince (1943) by Antoine de Saint-Exupery (1900--1944).