299,792,458 Metres Per Second: It's Not Just a Good Idea, it's THE LAW!
 

Here's how you can express your support for relativistic physics! It's true!

Tired of those demented theoreticians and all their talk about folding space, opening wormholes, and Quantum nonlocality? Respond to their handwaving monologues by simply pointing to this gentle reminder from the Retropolis Transit Authority.

Because up here, where we live - in the superatomic scale - we have to obey the traffic signs and keep it below the speed of light. Unless, you know, they turn out to be right. But until then, friends, remember:

 
It's Not Just a Good Idea - It's THE LAW.