This was not quite a 4, but I'm rounding up. This was a wild, messy, confusing ride that felt a bit like The Stepford Wives meets The Road. Langan doesn't hold our hand through her world building, piecing together information in tidbits, which can leave you feeling a bit lost and confused, but the plot she gives us is so good that you just need to stick along for the ride. In the end, some of the character interactions and behavior felt so weird and stiff and unexplained that it took me out of the story a bit, but maybe that was Langan's point - this new world she built is an easily-imagined future, but is still a little murky. And, maybe it's a bit of a cautionary tale - there's still time for us to change and not let things get this bad.