I was eager to read this one, as I had liked Gyasi's Homegoing. She does here in what seems like an effortless way what Powers often sort of shambles through trying to do -- marrying the technical or scientific to human emotion or experience. Of course I don't mean that it was effortless to do, but Gyasi does it more cleanly, more readably. I did feel like there was some slack in parts of the book (though it's pretty short), and individual relationships didn't always feel all that authentic, but overall, it was a good book, and somebody was clearly slicing a lot of onions near me as I read the closing chapters.