@albertcardona True, but can't we bring them all? I would like to keep dreaming...
@herrsaalfeld Quite moving that Margulys wrote this book together with her son—the next generation. And back then there was a sense of jubilation with the space shuttle program, of imminence of space exploration and colonisation.
@herrsaalfeld That was the conclusion of “At home in the universe” by Sagan & Margulys: wherever humans go, they necessarily take with them the constraints under which they evolved, and the easiest way to do that is to take the biosphere with them. The book describes spacefaring humans as biosphere seeds to be dispersed by the solar winds across the galaxy.