The scientific method has been a boon to humanity. Knowing how to sharpen the rational faculties has demonstrated its benefits time and time again. Sometimes, however, overemphasis on rationality contains hidden costs. Humans are not always rational, and sometimes this is a very good thing. Culturally we’re told that reason trumps emotion and that evolution has somehow led us to this. That’s only part of the story. Marcelo Gleiser’s excellent The Simple Beauty of the Unexpected serves as a wonderful corrective to this one-sided view. Although I’ve been trained in rationalistic thinking, my humanities background lacks the credibility of similar training in the sciences. Gleiser, as a physicist, demands respect. As he notes throughout this book, physics asks the hard questions. The only proper response, he rightly declares, is humility. Arrogance in any human endeavor may make for a good story, but it is bad citizenship on this planet.
I have to confess to being one of those poor souls who really doesn’t care about fishing that Gleiser mentions early on in his book. That doesn’t mean that I don’t agree with his outlook and mature thoughts on the subject. Using fly-fishing as a kind of bait, he draws the reader in to consider some deep and meaningful questions about life. Although he describes fishing literally, he clearly has a metaphorical usage in mind as well. Rare is the scientist who will admit that science can’t answer all questions, and moreover, wouldn’t want it to. Showing the limits of rational thought can feel like taking one’s clothes off in front of a crowd for those wedded to empirical evidence. Applied science clearly works very successfully. That’s not the same as having all the answers. Gleiser beautifully illustrates this, acknowledging that the spiritual has a role to play even among the rigorously trained and actually employed of the intelligentsia. This is a very important book.
Admitting that some things happen for which there is no rational explanation, Gleiser advocates for appreciating the wonder rather than trying to force science into situations where its explanatory power fails. This doesn’t happen often—indeed, rarity is what makes the unexpected so wondrous—but when it does happen we need to, like a fisher, accept it as part of the way the art unfolds. In Gleiser’s terms, not every fishing trip is successful. If you always had success, what would be the point in trying? He ventures into the murky waters of religion a time or two, but this is catch-and-release, not for the kill. The Simple Beauty of the Unexpected is an example that includes itself. Those who read it will learn what this means.