Large numbers hard to comprehend such as google, googleplex, graham's number and infinity and their significance in mathematics. The infinite room hotel is used to conceptualize infinitely. Infinity comes in different sizes which can be shown mathematically. The finite size universe versus infinite size universe theory. The infinite monkey theorem and Shakespeare. How long would it take a monkey to write Shakespeare? Cosmic inflation theory explains the cosmic background radiation and if it is correct an infinitely expanding universe is implied. Infinitely expanding universe may also mean there are (infinite) multi-universes. In infinite universes anything happens all the time as can be different laws of physics for these other universes. Directors: Stephen Cooter Producers: Stephen Cooter, James Van Der Pool Cinematographers: Nigel Bradley, Tom Hayward Steven Berkoff Self - Narrator Anthony Aguirre Self - University of California, Santa Cruz Peter Cameron Self - Queen Mary, University of London Gregory Chaitin Self - IBM Research Division Ronald Graham Self Douglas Leonard Self - San Diego State University David Spiegelhalter Self - University of Cambridge Max Tegmark Self - Massachusetts Institute of Technology Hugh Woodin Self - University of California, Berkeley Doron Zeilberger Self - Rutgers University