PIRSA:08090078

Clocks at the Big Bang? Quantum gravity is not what you think!

APA

Penrose, R. (2008). Clocks at the Big Bang? Quantum gravity is not what you think!. Perimeter Institute. https://pirsa.org/08090078

MLA

Penrose, Roger. Clocks at the Big Bang? Quantum gravity is not what you think!. Perimeter Institute, Sep. 30, 2008, https://pirsa.org/08090078

BibTex

          @misc{ pirsa_08090078,
            doi = {},
            url = {https://pirsa.org/08090078},
            author = {Penrose, Roger},
            keywords = {Quantum Foundations},
            language = {en},
            title = {Clocks at the Big Bang? Quantum gravity is not what you think!},
            publisher = {Perimeter Institute},
            year = {2008},
            month = {sep},
            note = {PIRSA:08090078 see, \url{https://pirsa.org}}
          }
          

Abstract

It has been a common viewpoint that the process of quantization ought to replace the singularities of classical general relativity by some chaotic-looking structure at the scale of the Planck length. In this talk I shall argue that whereas this is to be expected at black-hole singularities, Nature\'s true picture of what goes on at the Big Bang is very different, where clocks cannot exist and the conformal geometry is completely smooth.