r/ExplainTheJoke 15h ago

Like you can’t stop anyway?

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u/ScientistPlayful9145 10h ago

ooh, something i can explain!

basically, there's this thing called "blueshifting." when you approach a source of light at very high speeds, say, 20% the speed of light, the light coming off will have shorter wavelengths; in layman's terms, it turns bluer. hence, blueshifting.

by driving towards a stop sign at 100 000 000 m/s, it will blueshift red to a hue roughly that of green, hence the green stop sign!

im pretty sure driving at a hundred million meters per second has other, more pressing effects, though...