Huge sums are invested globally in medical research and development - and with good reason.

All over the world, social innovation is tackling some of the most pressing problems facing society today - from fair trade, distance learning, hospices, urban farming and waste reduction to restorative justice and zero-carbon housing. But most of these are growing despite, not because of, help from governments.

There is incredible potential for digital technology in and beyond the classroom, but it is vital to rethink how learning is organised if we are to reap the rewards.

Systems governed by only one set of rules are more vulnerable than those with variety.

A tablet replacing an exercise book is not innovation, it's just a different way to make notes.

All real capitalisms are impure hybrids, mongrels mixed with other strains.

Democratic nation states remain far more capable of managing the circuit of coercion, taxation and legitimation than any transnational bodies.