Book #70

The Drunkard's Walk: How Randomness Rules Our Lives
by Leonard Mlodinow

I got this one from Dad, who loaned it to me when he came for a visit, after he read the whole thing on his train ride up here from Paso Robles. This book reminded me quite a lot of The Wisdom of Crowds by James Surowiecki, another popular science/math book that I enjoyed and got some insights out of. This one, though maybe not as well written as Surowiecki's book, offered me even more insight and interest; not only did I love reading it, I feel like it has given me an opportunity to change much about my outlook on life, and only in good ways.

A lot of the book is taken up with the history of the study of randomness and chance, starting with an Italian physician and scientist named Gerolamo Cardano, who made a fortune by learning how to gamble intelligently, in a time when people believed games of chance were controlled by the fates, or by God. Cardano paid attention to what rolls of the dice came up more often than others, and used the information to make better bets; he wrote a book about what he learned after it paid his way through medical school and carried him past a bitter feud with the other doctors of Milan -- who didn't like Cardano because he had written another book that pointed out that they were a bunch of quacks. The most interesting part of the history, to me, was the new knowledge that most of the great mathematicians of the past were, well, pretty messed up. I wonder if it has something to do with having a mathematical mind in a disorganized and messy world, especially in the European Middle Ages, a society so focused on determinism and fatalism that they believed that attempting to understand the world was basically blasphemy, as it implied that you could understand the mind of God. But whatever the reason, the list of mathematicians who contributed to the study of randomness include religious zealots, liars, thieves, and madmen; it was most entertaining to read about.

My favorite part of the book, though, was the conclusions that Mlodinow drew from this history, and from what we have learned about randomness in the last few centuries. The biggest ones for me were these: first, that random chance influences the outcomes of every chain of events, everywhere in the universe, and every second of our lives, and second, that we don't understand this truth. Because of this, we believe that we can control things that we can't, and we see patterns where there are none; I've never read a better explanation of hindsight's apparent clarity, and it's something I plan to spend quite a bit of time pondering. The other inspirational conclusion Mlodinow drew was the idea that failure, and success, are both influenced far more by random chance than we normally believe. He says that our failures do not represent a lack of ability, but show the inevitability of chance's influence on the world; we do not fail for a reason, not always. More importantly, we do not succeed for a reason, either, and so the key to success, and to overcoming failure, is truly just to keep trying, to never lose faith -- because if there's one thing we can have faith in, it is this: random chance will sometimes put us under the bar, and sometimes, it will put us over. We will win, we will succeed, as long as we keep putting ourselves out there. Knowing that the reason we fail is often no reason at all, but merely dumb luck, should help us to overcome the agony of defeat and keep trying until the dice fall our way.

I liked that message more than I can say, and I'm extremely glad I got to read it.