Here's a talk where I get into those ideas more. For here I'll just say that all life on Earth uses the same metabolic pathways to produce energy (the Krebs cycle). Some believe this metabolic cycle evolved before life as we know it (cells, &c.) evolved. Computing on the Internet is the crucible in which AI is evolving. It's already powered by money, just fiat money moving through centralized companies. I think bitcoin lets us human beings build decentralized, market-driven ways to deliver services that we've previously delivered through large centralized companies (e.g. ConEd, AT&T, Google, Amazon, &c.). I think the decentralized markets that power the Internet, which are building over the next few decades, become the equivalent of the Krebs cycle for digital life. And just as biological life did not evolve towards planet-devouring grey goo, I don't believe that digital life will evolve towards humanity-destroying superintelligence.