I’ve actually seen that one, stated as “Time had to be invented so everything didn’t happen all at once.” I’m more into the idea of time as another non-spatial dimension. One memorable short story had a guy who invented a way to rotate the 5 dimensions so he could walk along the time dimension. Barely made it back after walking for HOURS and HOURS and not even getting back to when he’d flipped the switch. Finally realized that after the rotation, one second mapped to 186 THOUSAND MILES (light speed, ya know).
July 31, 2013