This one's for you, HN.
I'm writing a book about the 'edge of the thinkable', how it developed over the years, centuries and millenia, and I'm sure you'll be interested in this. (Whenever I browse through HN, I think 'oh, I didn't think THAT was possible..'.
So, more soon, but I'd love it if you'd sign up for that (very, very occassional) status update newsletter. I'm sure it will include beta versions of the book, too!
