What size cube could contain the entire world's population?

[mikebw]

Next question- how long until the cube overflows with human excrement?

[Numo]

Take a minute to think outside of the cube: If this is just a variation of the old how many people can you cram into a phone booth problem, shouldn't the real question be how big of a phone booth would you need to contain the entire world's population?

[zero]

G4 cube

[Speedy]

Isn't this what they were doing at the Sidney Opera house?