"My key message was that New Zealand truly is the land of opportunity. You can do things here that you can't do anywhere else in the world."
Sir Ray cited examples such as Auckland's Bill Buckley, founder of Buckley Systems, which makes machines containing powerful electromagnets used to prepare 90 per cent of the world's silicon chips used in mobile phones, iPods and LCD TVs. Sir Ray's own background includes rising from a poor childhood in English orphanages and foster homes, before developing an interest in science which saw him develop low-cost intraocular lens technologies, which now provide 13 per cent of the world market.
"Observation is the key to innovation," he said. "People who invent stuff don't have to be practised in the art - they can be older people who just see stuff."
Businessman Jon Mayson, who chaired the panel discussion, said just because people were older, it did not mean they should be sidelined. "For me, retirement is not the word to use, if it means you're switching off the communication switches and turning off your brain. Retirement is an opportunity to do what do you didn't have a chance to do while you were working full-time."