Why nothing can exceed the speed of light

ScienceClic English · Explainer · YouTube title: We all move at the Speed of Light

Why it's here

HN commenters recommend it as a helpful way to conceptualize why light speed is a limit.

What it covers

ScienceClic explains why nothing can go faster than light by treating motion through space and time together, so everything moves at the speed of light through spacetime. It uses animated visuals to cover relativity basics in 12 minutes.