13.8: The search for the theory of everything + Q&A (John Gribbin)

The 20th century gave us two great theories of physics. The general theory of relativity describes the behaviour of very large things, quantum theory the behaviour of very small things. But how can these theories be combined into a ‘theory of everything?’. Astrophysicist John Gribbin will present his own version of the ‘Holy Grail’ of physics, bringing the two theories together in one mathematical package offering the answer to life and the universe.