THIS LECTURE HAS BEEN POSTPONED. Please keep an eye on the page at http://www.maths.ox.ac.uk/node/16486 for updates.
In recognition of a lifetime's contribution across the mathematical sciences, the Mathematical Institute is initiating a series of annual Public Lectures in honour of Roger Penrose. The first lecture will be given by his long-time collaborator and friend Stephen Hawking.
The lecture will be podcasted live.