
A biochemist, building on the pillars of evolutionary theory and drawing on cutting-edge research into the link between energy and genes, argues that the evolution of multicellular life was the result of a single event.
The TLDR of his theory is that life originated in alkaline hydrothermal vents on the ocean floor, where natural energy gradients could have driven primitive metabolic reactions before the development of DNA.
Book goes into a lot of layperson-accessible detail.
He's really fascinated by the overall transformation process of inorganic matter -> organic matter, a sort of scientific fixation - which is always enjoyable when it's done by a competent scientist - and it's really captivating stuff. (The fact I haven't finished his previous book has nothing to do with the book material itself, if anything it really captivated me; it's just my not-amazing new habit of not finishing books...)
This book was a fascinating walk through evolutionary history and the way that different organisms handle energy, and how earlier, less efficient metabolic paths were limited but sufficient to bootstrap the much more efficient and flexible Kreb's cycle. I remember the term and the loop diagram from high school biology, but to actually dive into the elegant chemical pathways felt like discovering the rocket equation or the path from radioactivity to atomic bombs. If you're at all interested in Biology or Chemistry, I highly recommend this book.
