4.0

I wonder if the author anticipated this book coming out at a time when vacuum decay sounds like one of the better options to close out the year?

I struggled with this book a bit, probably because I just don't have a strong enough physics background. It's not really a book for people who last took physics in high school! I'm a big fan of Dr. Mack on Twitter, but sadly it seems that my poor biologist brain can only handle astrophysics in tweet-sized chunks. That said it's well written and structured, and the parts of it that I (think I) understood were very interesting. I'll most likely be passing it on to someone who'll be able to get much more out of it than I could!

3/5 for my enjoyment of the book, but 4/5 rating because that's hardly the author's fault