Comment 5 by SerenaP :

WRT the lady who asked if it was Richard's conscious decision to use simpler and simpler language over the years, and Richard replying that each was addressed to a different audience.

I'd like it if Richard writes books for an audience that has read The Selfish Gene and The Extended Phenotype. I consider The God Delusion "light reading"... something to read for a quick laugh, but essentially, I did not come across much that I had not figured out already for myself. (The Smolin bits were entirely new to me.)

I was genuinely surprised by the observation of the woman in the audience, apparenty endorsed by Serena here. I had truly thought that, with the exception of The Extended Phenotype (for professional biologists) and The Magic of Reality (for children), all my books, including The Selfish Gene, were aimed at the same audience as each other: intelligent non-specialist adults.

Shows how much I know!

Richard