It was a fairly new concept in 2005 but the idea that the evolution of life as determined by the play of energy on the surface of the globe terminates in inwardly-facing capitalist computronium predates Accelerando. While I'm unaware of the intermediate steps the idea took to get to Stross it's the thesis of many of the various essays that Nick Land scattered across Usenet in the nineties and probably goes back to Lyotard's writings in the eighties and earlier.