Another Beautiful and Strange Mind

John Baez writes about Groethendieck:
Alexander Grothendieck was the most visionary and radical mathematician in the second half of the 20th century - at least before he left his home and disappeared one fine day in 1991.

It's a fascinating story whose ending may never be known. If you like Perelman, you've got to love Groethendieck.

Physicists are occasionally eccentric, but mathematicians have a lock on the truly nuts.

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