Ignorance: Jill Tarter

Jill Tarter, a remarkable scientist who has been interested in whether or not there is an answer to the biggest question we all have: is there anybody else out there besides us? Jill is the director emeritus, virtually the founder of SETI, the Search for Extraterrestrial Intelligence, who has been working on just this kind of question for many years.

https://www.buzzsprout.com/1885701/9524009