Chapter 8Going Deeper with Insight

In the spring of 1983, driving along a road in northern California, Kary Mullis conceived of a process we now know as polymerase chain reaction (PCR). PCR is a method of generating millions of copies of a particular DNA sequence from a single precursor. Its discovery has made possible a wide range of applications, from the genetic fingerprinting you've seen tie suspected criminals to the scene of the crime (or exonerate the falsely convicted years later) to the early diagnosis of leukemia.

Yet what makes PCR a great example of insight isn't just that it happened to turn out to be a big deal. It isn't that it earned Kary the Nobel Prize a decade later. It is that, unlike others who had come close to the concept ...

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