Measures of the multiverse


Vilenkin, A. (2008). Measures of the multiverse. Perimeter Institute. https://pirsa.org/08050059


Vilenkin, Alexander. Measures of the multiverse. Perimeter Institute, Jun. 05, 2008, https://pirsa.org/08050059


          @misc{ pirsa_PIRSA:08050059,
            doi = {10.48660/08050059},
            url = {https://pirsa.org/08050059},
            author = {Vilenkin, Alexander},
            keywords = {Quantum Fields and Strings, Particle Physics, Cosmology},
            language = {en},
            title = {Measures of the multiverse},
            publisher = {Perimeter Institute},
            year = {2008},
            month = {jun},
            note = {PIRSA:08050059 see, \url{https://pirsa.org}}

Alexander Vilenkin Tufts University


Inflation is generically a never ending process, with new \'pocket universes\' constantly being formed. All possible events will happen an infinite number of times in such an eternally inflating universe. Unless we learn how to compare these infinities, we will not be able to make any predictions at all. I will discuss some proposed approaches to this \'measure problem\'.