Last week, Levitt eulogized Gary Becker, who died at age 83. After bringing an entirely new set of ideas to his discipline, for which he was occasionally ridiculed or marginalized, Becker was ultimately rewarded with nearly universal acclaim (and a Nobel Prize).
A couple weeks earlier, Seth Roberts died. He too brought an entirely new set of ideas to his discipline -- he was a psychologist who delighted in self-experimentation -- for which he too was occasionally ridiculed or marginalized. He didn't receive the universal acclaim Becker did, and Seth died far too young, in his early sixties.
But Seth had a huge impact on the people who were lucky enough to know his work or, even better, know him. Levitt and I wrote about him back in 2005, taken by the diligence and creativity with which be tackled topics like diet, personal health, sleep, and even acne.