Even today, people still discuss Carl Sagan and his Astronomy 490 course structure:

https://www.youtube.com/watch?v=-Pc3IuVNuO0

The articles posted UFO cult study reference is part of the reading list. =3

"On Liberty" (John Stuart Mill, 1859)

https://gutenberg.org/files/34901/34901-h/34901-h.htm

"Memoirs of extraordinary popular delusions and the madness of crowds" (Charles Mackay, 1852)

https://www.gutenberg.org/files/24518/24518-h/24518-h.htm

"The Evolution of Cooperation" (Robert Axelrod, )

https://ee.stanford.edu/~hellman/Breakthrough/book/pdfs/axel...