Evolution and the Levels of Selection
After I’d read the book I googled the author and I came across this lecture, which is actually a really nice lecture about many of the ideas also included in the book:
The stuff covered during the last five minutes or so of the talk is not in the book – there’s no political theory or similar in there – but most of the other stuff is. The book is somewhat more theoretical than the lecture; there’s no stuff about vampire bats in there. It probably also goes without saying that the coverage in the book provides a lot more detail than does the lecture, which only really scratches the surface; the analytical level is quite a bit higher in the book.
The book is in my opinion an example of really good philosophy of science. I liked the book a lot, it’s really nicely written and the author seems to be a very precise and careful writer and thinker. There are pretty much no superfluous pages in the book, which also means that I’ve actually been a bit conflicted about how to blog it, because it seemed impossible to go over all those ideas in just a blog post or two. I suggest you watch the lecture; if you like the lecture and/or want to know more about the ideas presented there, you’ll want to read this book.
The book includes some equations here and there, but nothing you shouldn’t be able to handle. Some really important ideas in the book are not mentioned in the lecture, but this is natural given the format – there’s only so much stuff you can pack into one lecture. For example in any two-level setting including ‘particles’ and ‘collectives’, the question arises of how to even define collective (/’group’) fitness. One might define it as “the average or total fitness of its constituent particles; so the fittest collective is the one that contributes most offspring particles to future generations of particles.” Or one might define it as “the number of offspring collectives it leaves; so the fittest collective is the one that contributes the most offspring collectives to future generations of collectives.” The distinction between these two conceptualizations of collective fitness actually is really important in some analytical contexts, and this is definitely a distinction worth keeping in mind.
I may cover the book in more detail later, but for now I’ll limit coverage to the comments above and to the lecture. In my opinion it’s a really nice book, I gave it five stars on goodreads.