Comment by gwern

Yeah, early 2000s lines up with what I can tell. There were a few translations like https://web.archive.org/web/20021207080806/http://www.berdya... which surfaced somewhere around 2001 or 2002, and they appear to have been about the first anyone had ever heard of 'Cosmism'. Which still wasn't much at all - I was on SL4 myself starting around 2003, and I don't remember ever hearing of it (except possibly as a footnote to a footnote on Konstantin Tsiolkovsky) until Stross's post. So you can imagine my surprise to learn from Stross that despite me never having heard the name, and having never seen any of this discussed on SL4 or Extropians or OB or in _Great Mambo Chicken_ or in Ettinger's _The Prospect of Immortality_ and Yudkowsky and Metzger and Max More and all the rest of us having never heard anything about this, this was nevertheless foundational to Western transhumanism... Remarkable the things you learn if you hang around long enough!

Sarcasm aside, that was a bit of a pity, because even if it had no relationship to anything in 'TESCREAL', Cosmism is an interesting historical artifact. When I was in LA back in 2019, I was able to visit the Museum of Jurassic History where there was an exhibit of Tsiolkovsky stuff like drawings on how humanity might live in space, and it was much more interesting when you knew a little bit about the Cosmism background there.