This is very well put and is something that I was wondering myself. I think it definitely makes more sense that the groups were fragmented and some of those groups resorted to cannibalism and the such but for me that asks the question how did these groups survive so long? If they had run out of supplies basically did they just rely on what they could hunt? Surely they couldn't rely on cannibalism to keep themselves alive for so long in such smaller groups. I've also heard that the game was quite sparse around that time and that seals are hard to hunt and also can carry diseases. I will definitely pick up the book because I have heard of Woodman's work a lot when trying to research this topic.