Not going to class isn't typically something good to boast about. But perhaps the late Vladimir Voevodsky is the exception to the rule.
Voevodsky is credited with founding new fields of mathematics, such as motivic homotopy theory, and a computer tool to help check mathematical proofs, as the New York Times explored in an obituary this week. The latter was a feat that other mathematicians didn't dare approach, but Voevodsky's effort has overwhelmingly benefited the industry—and everyone, really—by allowing mathematicians to fact-check their work.
Read more at Mashable.