I'm a big fan of Kim Stanley Robinson. I loved his Mars trilogy. I'm really not sure what to make of this book. I read the Kindle edition. Did someone screw up and accidentally post a first draft with just notes? Roughly every third chapter seems like it was intended to have been done with bullet points (no formatting, no punctuation, incomplete sentences). Is it supposed to show the influence of our texting culture? I don't know, but it doesn't work for me. I found the beginning a chore to read, but it had some interesting plot, thoughts about post-CRISPR human evolution, and some interesting possibilities for human terraforming and expansion into the solar system.
By the middle it felt like each succeeding sentence had been chosen by a random number generator -- dissonant, disjointed, random, no flow, no plot, no action, no character development. Likewise, the future history of tech development seemed oddly uninformed as if it were written in the late 90s.
Time is my most precious resource. At the halfway point I couldn't justify wasting any more of it on this book. If you do read this, try a printed or audible version -- I can't imagine the Kindle version I read even being nominated for a Nebula award, much less winning. I'd like to believe I just got a bad e-copy because I know Kim Stanley Robinson can do much better.