Potential talk titles under consideration include:
-How to inject compassion into an overburdened health system.
-Mistaken identities and translation errors: The first interactions between Maori and Pakeha in the 1800s.
-Is it possible to reduce a pest population to zero?
-Never too old, never too late. Learning is the fountain of youth.
-Can worm farming scale to industrial sizes?
-The pollination puzzle. Unexpected alternatives to bees.
-How to make a positive impact on those affected by divorce.
-Generosity with no strings attached.
-My lips refuse to move. How my on-screen avatar speaks for me.
"We're asking our potential speakers to boil down what they know into 15 minutes," said Mr Nesdale.
"They all find that very tough.
"But in the end, they take on the challenge and feel better for it, and the audience will get those ideas in short, sharp, interesting chunks."