Brian Greene Quotes
You almost can't avoid having some version of the multiverse in your studies if you push deeply enough in the mathematical descriptions of the physical universe.
Greene, Brian. Interview by Clara Moskowitz. Space.com, 25 Jan. 2011.
Brian Randolph Greene is an American theoretical physicist, mathematician, and string theorist. Greene was a physics professor at Cornell University from 1990-1995, and has been a professor at Columbia University since 1996 and chairman of the World Science Festival since co-founding it in 2008. Greene has worked on mirror symmetry, relating two different Calabi–Yau manifolds (concretely, relating the conifold to one of its orbifolds). He also described the flop transition, a mild form of topology change, showing that topology in string theory can change at the conifold point.