It's Always Sunny in Philadelphia

S10E9 — Frank Retires

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It's Always Sunny in Philadelphia
Season 10, Episode 9
Frank Retires
Image #16

No, it was that light is either on or off.

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What was the point? It was something to do with how metal travels faster than light or...
No, it was that light is either on or off.
There's no speed to light. It was an anti-science thing.