Also virtual reality and worldships. But that's a new one to me. Isn't human imagination wonderful? RAMA[/QUOTE] I deleted my post because on further research I may have misremembered this - until five minutes ago I'd have sworn that the, *ahem," inspiration for Gomtuu in Tin Man came from my reading Starmaker while in college. I'll have to do read further to make sure, but a quick perusal of what's available of the text online indicates that while "A Symbiotic Race" describes the foundation of a galactic community by a joined species, bioengineered ships don't form a part of it. I probably combined remembered elements of Stapledon's book with something encountered later on - what, you think I'm going to pretend that I made this stuff up?