The same kind of different

From an article on effective altruism and blind spots:

Last August, Ruthie and I attended the Effective Altruism Summit reception. Ruthie still didn’t have a good sense of the community at that point, so she was asking other attendees about it.
“What kind of people are in your EA group?” she asked him.
“Oh, all different kinds!” he replied. “Mathematicians, and economists, and philosophers, and computer scientists…”
It didn’t seem to occur to the fellow that these were all basically the same kind of person.

Sounds pretty accurate.