Here is the link, Becker joked only once, and Tim reports:
Becker wants a clear head for tennis that afternoon. He is 75 and looks
it, with fine white hair and translucent, heavily lined skin, but he
moves like a younger man. When I arrived at his home to take him up on
his offer of a lift to the restaurant, I could see his silhouette
coming down the stairs at a fair clip. He drives confidently. In the
summer, he moves his work to Cape Cod and often swims in the ocean.
Becker has always loved sport, but that, and his family, seem to be his
only distraction from work. "I don’t like small talk too much, so I
don’t try to get involved in that." It is clear from even a few minutes
conversation that what really motivates Becker is the world of ideas.