It's not hard to see why Gerry looked up to his older brother Lionel. "My brother, who was a mosquito pilot during the war, came back on leave once– and he said to me, 'assuming it were possible to fly in a straight line across the universe, and assuming you had eternal life and an inexhaustible supply of fuel, you must eventually come to the edge of the universe. And, if so, what is beyond?' That kind of mind-boggling question really set me thinking."