- Bassist Roger Waters wrote “Part 2” as a protest against rigid schooling, particularly boarding schools. “Another Brick in the Wall” appears in the film based on the album. In the “Part 2” sequence, children enter a school and march in unison through a meat grinder, becoming “putty-faced” clones, before rioting and burning down the school.
- “Another Brick in the Wall” is a three-part composition on Pink Floyd’s 1979 rock opera The Wall, written by bassist Roger Waters. “Part 2”, a protest song against corporal punishment, and rigid and abusive schooling, features a children’s choir. At the suggestion of producer Bob Ezrin, Pink Floyd added elements of disco.
- Barber paradox (Wikipedia)
The barber paradox is a puzzle derived from Russell’s paradox. It was used by Bertrand Russell as an illustration of the paradox, though he attributes it to an unnamed person who suggested it to him. The puzzle shows that an apparently plausible scenario is logically impossible. Specifically, it describes a barber who is defined such that he both shaves himself and does not shave himself, which implies that no such barber exists.