"Earth's sapient population was somewhere around eighty-six percent human, last I checked," Jim responds, after a moment's thought to recall the statistics. "Anyone in the Federation's welcome to visit for any reason, and Starfleet's responsible for most of the non-native student population. There's not really a dedicated exchange student program, but people do sometimes study on other planets if they can't get some kind of specialized training on Earth."

Just plain 'human' doesn't really cut it in Jim's corner of the multiverse either. Sure, it's useful as a catch-all for the species, but the term for Earth-born humans is Terran, where he's from. Still, it's all semantics anyway.

"Cyclical time," he says thoughtfully, considering that. Not something he thinks he can believe in, given the strong role that time travel has played in his own personal history, diverting his destiny in a surprisingly tangible way. "I can think of a few cultures that see time the same way."