“If you can only read one book on the future of our species, this is it”
— Sanjay Gupta
“A must-read book”
— Siddhartha Mukherjee
“An outstanding guide to the most important conversation of our lives”
— Ray Kurzweil
“Metzl writes with great clarity and a sense of urgency that we should all take to heart.”
— NPR Books
“Propulsive, fact-packed and engrossing…Metzl has a knack both for clarifying granular scientific and moral complexities, and for seeing the big picture”
— Nature