I can’t think of two more diverse interpretations to the same song. Silence isn’t necessarily silent in the first version. Disturbed’s 2015 version and video interpretation is a bit disturbing. There is a warning here we should not ignore.

The Pentatonix strive for harmony.

The Simon and Garfunkel originally released in 1964 but wasn’t a hit until 1966. When asked to explain the meaning of the song, Art Garfunkel once said it is about “. . .  the inability of people to communicate with each other, not particularly internationally but especially emotionally, so what you see around you are people unable to love each other.” It could have been written this in 2020. It was written by Paul Simon who said he had no idea what it was about. He wrote it in his bathroom when he was 21.