Professor Robin Dunbar from Liverpool University will lead our discussion on what caused the incredibly fast increase in human brain size in such a very short evolutionary period of time. How do we compare with other animals? What did size do for us? Are there implications for society, politics and “ideal community sizes“? Is the human brain still evolving or are we now locked in a new world with a pre-historic brain and finding it difficult to cope? Are there implications for dealing with Europe, the larger society and our species’ aggression across the world?