XKCD: 2840 "Earth Layers"
"The Earth's magnetic field is primarily generated by currents in the liquid outer core, though some geophysicists argue that an unexplained mismatch with models suggests that the Kinder toy contains a magnet."
Scientists have discovered a sour cream layer, below the guac...
and tortilla chip continents floating on the guac
I thought the top was the sheriff’s office and cafeteria, 100th layer was the bazaar, and 140-144 were mechanical. At least in silo 17 and [spoilers].
The 148 layers needed some small simplication.