I've taken it from five stars to four after mulling the book and having written the review, I realize I only want to give it three. This is a good book but too wide in scope. It's not a biography of Jennifer Doudna, although there is a focus on her.
For those who think the covid-19 was discovered with amazing rapidity, that's not true. Doudna and Charpentier (actually Charpentier made the key discovery but this book has some bias in favor of American scientists) discovered their particular CRISPR technique -- cutting and pasting code into mRNA using enzymes and based on how bacteria fight viruses -- using a specific enzyme in 2011. Decades of research by dozens of scientists laid the foundation, which is always true in science and not emphasized often enough in science books. Isaacson does this -- and much more, to the detriment of the book. They were awarded the Nobel Prize in 2020 because their discovery, apparently more than others, led to the precise covid vaccines we're getting or will get now. There are others who believe they deserve credit and maybe that Nobel ought to be theirs.
Isaacson, who I've never read before but has written some acclaimed biographies, takes on an amorphous, complex scientific subject trying to cover many different aspects, and I don't think he ever really gets his arms around it. It reads like a cohesive narrative but that depends on leaving out a lot and jumping around among people, science and other topics. While reading it, it seemed more coherent to me than after I finished. The excess of information on the chemistry, the many scientists, the patents, biotech info, biohackers, germline editing and ethics, among other topics in there, could each fill a book. So The Code Breakers, while interesting reading, is often either too specific or too broad, with too many tangents.
The science: Chemistry is possibly my worst subject. He explains it well because I understood a lot of it while I was reading, which is to his credit. But, and it could be how my brain is wired, I don't remember most of it now nor do I need to. He didn't need to get into that sort of detail, he wasn't writing a science textbook. Now that I'm familiar with the technology I'm seeing articles with great frequency and the basic background is helpful for some.
The scientists: There are so many in here because so many have contributed and the book is out of date in some areas already. It's a very fast-growing area of study. It all started with Watson and Crick's discovery of the double helix of DNA in 1953. Along the way hundreds of scientists, possibly more, have contributed. That's how science works: small discoveries build upon and advance others and no one person is ever solely responsible. Jennifer Doudna and Emmanuelle Charpentier's work was key -- but many others contributed along the way and are still.
There is a a focus on the personalities of some of the scientists, in the case of Watson on his misogyny, his failure to give credit to a female scientist without whom Watson and Crick could not have put the puzzle together, his personal views which are abhorrent but were for me yet another side trip in the book. There's a lot on competition, falling-outs, possible theft of intellectual property even though by agreement once patented, pre-publication a lot of the science, which is advancing very quickly, is open sourced. There's a parade of names and labs and biotech companies and they matter, but sometimes reading it felt like reading The Encyclopedia of Gene Editing, something I would never reach for.
Also there are quality color photos of a number of scientists, too many for my taste -- sometimes by the time I saw the photo I couldn't remember among the parade of names, discoveries, personality traits and rivalries exactly how that person fit in. I'd rather not have had so many photos, including multiples of Doudna, and have the book be shorter, tighter, minus the photos and so less spendy.
There are the patent races and the competition among universities in the U.S. and he covers some abroad. Biotech companies are now and have been, in this area of research aligned with the scientists and their universities so for years there's been a race for the scientists to publish and patent because their schools (in Doudna's case, Berkeley, but mainly in the U.S. Harvard and MIT) benefit and the biotech companies the scientists form (Doudna, like most of the scientists in here, owns several) have gone on to make many millions. There's big money at stake.
The ethics: Another detailed, serious, important topic which is not the focus. This is a core issue that could fill a book and maybe there are several and each one will probably be outdated as soon as its published. Because besides ethical nightmares and gentlemen- and gentlewomen's agreements not to cross certain lines, those lines have been and are being crossed. There are biohackers taking this open source technology and doing things with it such as one who experimented and altered traits of a frog. There are scientists with capabilities to do things that others don't approve of.
It's complicated and because he doesn't focus on that one topic which is changing all the time anyway, it's confusing and to me, frightening. One scientist in China went beyond the unofficial agreements, editing the genes of twins to eliminate a certain virus. He didn't need to do that; an easy method that doesn't involve germline editing is available. But he did and one twin came out fine but Isaacson tells us it didn't go well with the other -- but not why. That scientist is in prison in China now. In another experiment, one conducted in the U.S., one of the trial subjects died.
There is the ability now to both cure many diseases by various means of RNA and DNA editing, and to ensure they're not passed on to future generations -- and to use that same technology soon (or now) to have parents choose eye and hair color. Not far behind or here already are height, weight, IQ. There's a specific sequence for athleticism found in many marathon runners so parents may want faster, stronger -- whatever. Again this could and should be its own book, and may be. These are enormous questions. Ban germline editing, which is what it's called, in one country and the wealthy will go elsewhere to create designer children. This is obviously very troubling. Also, even a cure can have negative consequences. Now. And who knows what happens later when humans have been messing with genes for a long time? Isaacson writes about a woman who was cured of her sickle cell. But editing that gene is problematic because the same sickle cell makes people more resistant to malaria.
It's all so complex. And his broad approach made for compelling reading while I was reading it but having finished most of it didn't stick with me and I think partly it's because of how much he throws in. The science, a lot of it is minutiae and covering the scientists, the labs, the competition, the biotech companies, the patents, the prizes, the open sourcing, the biohackers, the uses and abuses, the personal traits of Watson and some others -- it's ironic because this technology depends on very specific sequences being worked out and inserted very carefully by very specific methods into very specific cells. But this book about it is both too specific and too broad and, because the science is moving very quickly in many directions, in places outdated already. The more I think about it (two stars off more) I wouldn't choose to read it if I had a do-over.