 science of sex and gender and all this stuff that's kind of bizarre. And Butler's book really puts it into perspective. Like why now? Where is this manufactured controversy coming from? How it preys upon sort of the misconceptions that we might hold about the relationship between sex, gender, expectations about these things. So I feel like it reminds me very much of books that Naomi Oreskes would write, like Merchants of Doubt and things like that, where like this is happening now. So it's not even a look back, but I think an important book for this moment.