Serendipitous discoveries often involve seeing something unexpected and imagining a use for it. I am currently reading Mary Makary’s Blind Spots. To explain the inertia of the medical establishment, he points out that seeing our expectations contradicted is painful for us; it causes what Leon Festinger called “cognitive dissonance.” Cognitive dissonance causes stress. Most of us minimize the stress by denying or papering over the experiences that contradict expectations. It takes effort, often painful effort, to keep the contradiction in mind. One of my heroes is Oswald Avery, who discovered that the genetic material is DNA. Before he focused on DNA, he worked hard to understand the behavior of the Pneumococcus bacteria that cause pneumonia. Then Fred Griffith showed that only encapsulated Pneumococcus bacteria could cause pneumonia since unencapsulated Pneumococcus can be eliminated by the immune system, and showed further that unencapsulated Pneumococcus could acquire capsules, and become infectious. This transformation of the Pneumococcus contradicted Avery’s expectations, likely causing the him the stress, and the Graves disease, that paralyzed his research for six months (Barry 2005, pp. 421-422). But Avery did not suppress the contradiction. Eventually he pivoted (or if it takes six months I should say ‘eventually he painfully changed direction’) to the research that led to DNA as the genetic material.
(p. A15) Horace Walpole, who coined the term “serendipity” in a 1754 letter, believed that “the best discoveries are made while one is searching for something else,” according to Mr. Pievani. But blind luck, although often important, is not sufficient in itself, as emphasized by Louis Pasteur when he observed that “chance favors the prepared mind.”
“Serendipity” provides a catalog of serendipitous discoveries. . . .
Mr. Pievani offers a useful and informative survey but sometimes layers his material so elaborately as to be off-putting. Early on, for example, we learn that “in 1762, Venetian playwright Carlo Gozzi, the anti-Goldoni who in the same year published the Turandot, which would inspire Giacomo Puccini, brought to the theater a fairy tale, The Deer King, which in the midst of the rococo revived the novella by Khusrau and Armeno, in particular the theme of the transmigration of souls from human to animal.” Huh? Aside from showcasing Mr. Pievani’s extensive learning, such digressions mostly demonstrate his need for a ruthless editor.
“Serendipity,” translated from the Italian by Michael Gerard Kenyon, is most intriguing when it focuses on people with prepared minds who didn’t merely find something they weren’t looking for but were in fact searching for something else when they had a breakthrough.
. . .
In 1928 Fleming, a microbiologist, had been growing Staphylococcus aureus in petri dishes. One day, upon returning from vacation, he noticed that one of the cultures had been accidentally contaminated with a Penicillium mold, which had mysteriously killed the surrounding bacteria. As a military doctor in World War I, Fleming had seen many soldiers die of bacterial infections, and he surmised that maybe this mold would help cure comparable illness.
. . .
. . ., without a prepared mind à la Pasteur, many key discoveries would have been missed. Mr. Pievani makes clear that “if you do not have predictions and expectations in mind, you will never be able to see that an accidental observation is incongruent and therefore potentially a harbinger of serendipity.” The author seeks to encourage what he calls an “ecology of serendipity” that facilitates scientific discovery. He has some suggestions, notably that one should be a “xenophile: love all things strange, all things different, foreign and new, the exceptions, the deviations.”
For the full review see:
(Note: ellipses added.)
(Note: the online version of the review has the date December 16, 2024, and has the title “BOOKSHELF; ‘Serendipity’: Progress by Accident.” In both versions of the article, the names of works of literature and species of bacteria or mold, are italicized.)
The book under review is:
Pievani, Telmo. Serendipity: The Unexpected in Science. Translated by Michael Gerard Kenyon. Cambridge, Mass.: The MIT Press, 2024.
The book by Barry that I reference in my initial comments is:
Barry, John M. The Great Influenza: The Story of the Deadliest Pandemic in History. Revised ed. New York: Penguin Books, 2005.