This is my second time to visit this page about this award and my urge has become stronger that the age restriction would not be helpful to finding real and the best solution to the population sustainability issue.
While it is clearly good to encourage young people to think about it, the smaller feasibility area does constraint the optimal results, unless the best result in the unrestricted optimisation coincides with this smaller feasible area optimisation.
If Mr Dick Smith is not only interested in encouraging young talent but also in finding the best solutions, then the award should not be restricted to young persons aged 30 or below.
Having said that I would have to say that Mr Smith's setting up a award for such a social and policy issue is outstanding thinking and should be highly commended.
Australia will definitely be a better place if more awards for solutions to important social and policy issues, such as mitigation of floods and bush fire damages in Australia, practical and optimal taxation and social welfare, Indigenous education, health and economic participation, optimal monetary and fiscal policies (i.e. why Australians have to pay so high interest rates), why Australians have to pay so much higher prices for virtually many things (i.e. the price differences between here and that in the US)?
It would be nice to award practical solutions and people who make outstanding contributions to practical solutions to important social and policy issues.
Both the public sector (government) and the private sector including private citizens should join such effort to improve Australians' welfare and well beings.
The public services and bureaucrats have their roles, but experience shows that many real constraints (such as political, operational and organisational constraints) have put a significant limit to their roles.