Birch Planets are enormous hypothetical Megastructures which would have more living area than every planet in our galaxy combined, and are even larger than Dyson Spheres.
Mega Earths: https://youtu.be/ioKidcpkZN0
To find out more about megastructures, see the Megastructure Compendium: https://youtu.be/1xt13dn74wc
Produced, Written & Narrated by: Isaac Arthur
Graphics by: Jeremy Jozwik, Ken York
Music Courtesy of Epidemic Sound http://epidemicsound.com/creator