I get odd questions in The irresistible urge to rant, riff and ramble

L: Need your opinion, for a spacecraft travelling at 80% the speed of light, how damaging would a asteroid impact on the hull be? Assume the spacecraft to be 1/2 the size of a battleship with equivalent armour and the asteroid to be 1/2 the size of a car travelling at 10% speed of light. What do basic physics principles say?

Me: They say "you be fucked".