[I've been

A very slow-motion prehistoric story, not his usual thing. You follow a few years in the life of an early homo sapiens clan, at a time and place where they were co-existing with Neanderthals (who they called "the slow ones"). It’s a lot more survival focused than narrative in some ways, but you get little parts of learning more about these people. Felt a lot like someone who had seen some cave paintings and wanted to create a backstory for all of them. Enjoyed it in these chilly dark nights.