@Tirial @stavvers Relativistic dickfarts will likely affect the launchperineum like a SpaceX superheavy test in a Texan nature reserve. Also, at relativistic speeds it’s going to compress the air in front of it so much in the first millimetre or two that it’ll induce fusion reactions between oxygen and nitrogen nuclei, never mind hydrogen (according to XKCD, who Know These Things).

Could be new underwear time!

—@cstross