Tired Light T-Shirt | When Photons Need a Coffee Break dirt bike humor (Note: Trick difficulty may vary

(Note: Trick difficulty may vary depending on local gravitational conditions

Durability that could withstand both paradigm shifts and washing machines

People whose Amazon shopping history is definitely on a watchlist

Note: No electrons were harmed in the making of this shirt (though several did get pretty excited about the design)

inside out for graphic longevity)

Tired Light T-Shirt | When Photons Need a Coffee Break dirt bike humor (Note: Trick difficulty may varyFritz Zwicky's 1929 alternative to the expanding universe theory because sometimes even light gets exhausted trying to explain where it's been! This design celebrates the cosmic hypothesis that suggested photons don't expand space, they just need a nap after traveling for billions of years. Technical Details: Retro sci fi design in dramatic reds and grays Features planets looking suspiciously fatigued Quality that won't redshift no matter how far it