They don't understand it. By the Arthur C. Clarke rule, it's equivalent to magic. When you challenge the powerful, you are guilty purely because you did something the average unsophisticated user isn't capable of.
If you drive 15 minutes in London, you won't have moved from your original spot.
Madness string 56518
The literal speed of light, however, as in velocity through spacetime, cannot be exceeded by any means, ever - c, the speed of causality, is a fundamental property of the universe. There will never be a way to get around it.