Activity for case‭

Type	On...	Excerpt	Status	Date
Question	—	Optimal arrangement for habitable zones? So, here's my issue. My setting's central conceit is that a myriad of human societies developed at relatively concurrent times across a large system separated by only a few light-hours. (There are, of course, a few tech gaps.) However, as these societies are all inhabited by pretty biologically simil... (more)	—	over 6 years ago