It has lately become an article of faith among many people, especially certain type-A parents, that to do anything well, one must spend 10,000 hours (or some other arbitrarily chosen criteria) practicing the activity, from playing the violin to mastering a foreign language to becoming an outstanding soccer player. Single-minded focus is recommended by the "tiger-mother" school of thinking, and is unfortunately inflicted on many children by well-meaning parents. David Epstein has done extensive research to demonstrate that what appears to be obvious about becoming proficient in a sport, game, or academic pursuit, is actually far from obvious.
Epstein researched a wide range of people who were successful in their fields, and he found the opposite of what many would expect; instead of the example of Mozart, who started learning the keyboard as a very young child and then continued with daily training for years, he found that most of those who achieved great success and honors in science, sports, or the arts were "samplers". They tried many different things before settling on their chosen field, and even after choosing their profession or specialty, they continued to dabble in hobbies or other interests unrelated to the field where they achieved success. And importantly, these people cited example after example where knowledge or experience in an outside interest or hobby gave them an unexpected tool in solving a problem in their chosen profession. Also, people with a broad range of interests tended to seek and identify data that did not fit, and they were willing, even eager, to identify problems with their own theories or systems in order to find a correct theory or more effective process.
An example of seeking problems and investigating data that didn't "fit" was NASA during the Apollo Program. Werner von Braun asked engineers every week to write up their activities in a weekly one-page document, and to report any problems or anomalies they were encountering. Von Braun would often write comments on these papers and direct investigation into problems that had been reported; people who reported problems were viewed as part of the solution, not troublemakers, and von Braun used these reports to improve NASA's performance. Similarly, the most effective quality-improvement system I was ever a part of was as an engineer at Texas Instruments where, on a weekly basis, a designated engineer (me) would lead a meeting in which we asked manufacturing line employees, "what are we doing wrong?", and/or, what can we improve? If a manufacturing employee identified what appeared to be a process error or inefficiency, the engineer was required to investigate and answer the issue raised by the employee and to change the process if appropriate. It was often astonishing to me to see how easy it was to get large productivity or quality improvements through this process, and all it took was for engineers and management to check their egos at the door and seek the best solution.
Epstein also explored the stark contrast between strict specialists and generalists in terms of finding correct solutions or forecasting outcomes correctly. Those who were narrowly focused on their chosen field tended to be less productive than those who dabbled in a variety of fields; notable examples are Steve Jobs and Roger Federer, but a survey of Nobel prize winners turned up the same kind of profile; almost all the Nobel winners had many outside interests from bird watching to amateur theater to playing a musical instrument, and these interests, despite taking time away from their professional work, were cited by the Nobel winners as actually enhancing their performance as scientists, economists, etc. Among children who were driven to specialization by parents, a notable effect of such early specialization is what appears to be burn-out. By virtue of being forced to immerse themselves every day in soccer, or violin, or foreign language, or chemistry, children often came to hate the thing that they were being forced to learn, whereas the samplers, like Roger Federer, who was not pressured at all by his parents, ultimately chose the sport he liked best out of five or six that he played as a child, and he did not definitively choose tennis until he was thirteen. By allowing him to sample many things, his parents helped him become the greatest tennis player of all time.
All this points to the foolishness of forcing children or college students to specialize early. In an earlier age, say fifty years ago, it was quite common for colleges and universities to have a large core curriculum including math, history, sciences, English, foreign languages, and other courses with the intent of providing a broad rather than a narrow view, but the current approach to higher education has turned that on its head, with ominous consequences. It has become common for Nobel Prize winners to note that the breakthroughs they made would likely not occur in today's academic environment where each discipline operates in a silo without access to the insights of other fields of study. And studies of specialists showed that when confronted with problems in their theories or conflicting data, their tendency is not to investigate to look for error, but to double down on their own views.
None of this is meant to diminish the value of specialists. I have a good friend who was first in his class in nuclear physics, and he is still contributing to the science of laser physics at a major university. He is a huge asset to society, but no one forced him to be a physicist - he does it because he loves it. Not everyone need be a specialist, but everyone needs to learn how to think, and Epstein shows that people think better, and are much better problem solvers when they have broad experience and varied interests.
This book made me feel better about my early life, because I was nothing if not a sampler as a child. I had intense interests in a variety of areas, but after several months, or years, I tended to lose interest in most of the things I delved into. And any hobby that required a massive commitment of time, to the exclusion of other interests, quickly dropped away for me, because I was unwilling to give up the many other things I enjoyed. So I kayaked, I gardened, I played softball, I sailed, I swam, I was a runner, I built hundreds of model airplanes, I played tennis, I read hundreds of books, I had a neighbor who was an airline pilot and he taught me to fly, I lifted weights, I built dozens and dozens of model rockets which my friends and I then launched (occasionally starting fires), I had a chemistry set and did experiments, I played basketball (badly), I drew, I water-skiied, I shot a .22 rifle and became quite a marksman, I played golf well enough to make the high school team, and perhaps my most frequent activity was just wandering in the woods and observing the plants, birds, snakes, and other animals I saw there. Altogether, one might say it was an aimless childhood. Academically, I did well, but not outstandingly well. Physics interested me, so I got A's in it. Calculus did not, so I got B's. I went to West Point (surprising myself a little by being admitted), and after two years found myself not sure about my choice, despite being ranked high in the class academically. I studied engineering, but I specifically disliked its narrowness of focus. I did not select my current profession until I was 32 years old, having been an Army officer, a product engineer, a procurement engineer, and a customer account manager. So in each new job, I felt like a bit of an imposter because of my lack of "credentials", a feeling which many of the people profiled by Epstein also admitted feeling. But I have also noted that I am frequently able to identify problems when others don't, and to see patterns, and to ignore structure and processes when logic says they should be ignored. This can be dangerous - as my dad said, if you're gonna be tough, you better be good, i.e., if you are challenging orthodoxy, you better have thought through your alternative solution. But alternative solutions are often what we need; solutions that go back to first principles and use basic logic to work to an answer. And generalists are far more likely than specialist to be able to do that.
I gave the book four stars rather than five only because I thought some of the examples Epstein shared became repetitive - he could have shortened things down a bit. I also disliked his military example and did not agree with the solution, but that's nit-picking from an Army vet. His bit about firefighters dying rather than putting down their tools moved me deeply, as I have read the book he references, Men Against Fire, and I understand viscerally the instinct to keep one's tools in hand, even when survival would favor throwing them away.
I wish the higher education establishment and our society generally would take the lessons of this book to heart, but I'm afraid we are wrong-headedly committed to the path of early specialization. Maybe this book can be part of a beginning to turn the ocean liner of educational practice back toward broader learning.