Daylight savings time isn't real because it's a U(1) gauge choice

This is why we use index notation

Try compactifying your coordinates! It's fun!

Some days I just want to coordinate with my friends

Today I'm feeling hyperboloidal

Just change coords, buddy

Coordinate singularities don't scare me

Today I'm feeling oblate and spheroidal

Coordinate system of the day: Boyer-Lindquist coordinates

Hello topological space!