monologue

A student interviews Kirsten Carlson, who does not have an internal monologue, and she answers questions about how she thinks. The video grew out of a viral article about people lacking inner speech.

An excerpt from the 1983 BBC series Fun to Imagine in which Richard Feynman describes how he and a mathematician friend counted in their heads in different ways, one verbally and one visually. It shows that people can reach the same goal through quite different mental methods.