If you yawn, you’re a human dynamo. The purpose of the yawn examined. The Sunday Times of London

How ideas change. ‘If Sigmund Freud was the central
cultural figure in the first half of the
20th century (for having introduced the
concept of the ”unconscious” into everyday
life), then perhaps the dominant figure in
the second half was a retiring historian of
science named Thomas Kuhn.

Haven’t heard of him? That means you
probably didn’t go to college before, say,
1970. Don’t know his work? Of course you do. Kuhn introduced the word ”paradigm” into everyday language.’ Boston Globe