Figuratively speaking, at least

Random thought: where most writers use similes, Richard Powers uses metaphors. Am I right? I might be wrong. That's my sense, though, after reaching the halfway point of Galatea 2.2. It's a sense I think I could parlay into a book-length thesis, were I to find a couple spare years between the couch cushions. So, fans of thesis-free blogging, take a moment to be glad that time is not loose change. Ah. Yes.