This sidebar rather cunningly links you to the official Substack newsletter for The Egg And The Rock. That is where I am writing my next book, in public. Which is both terrifying and exhilarating… What’s it called? Er, The Egg and the Rock. It is a beautiful book about our beautiful universe. Go and subscribe, if you want to be kept up to date as the book develops. Or if you would like to help me develop it: I love to get your comments over there. It’s free, and once you’ve subscribed, you will be emailed each new piece of the book as I write it. There is also some other fun stuff going on. Click now! Subscribe! You will not regret it! (Well, you might regret it, but then you can just unsubscribe.)