Many of the greatest composers and musicians do their best work in extreme confinement but we are seeing it in other fields - uses of technology to link people together in networks to solve problems and almost certainly we'll get better ideas than we would from them just doing it on their own.

Courses can, and should, incorporate the excitement and fun of programming games, apps or even real digital devices.

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.

The really interesting moment will be when you have a critical mass of people engaging through the networks, more than through the press and TV. When that happens, the culture of politics has to change, moving away from controlled one-way messages towards a political culture that is more questioning.

There are hardly any apprenticeships in care; hardly any schools preparing teenagers for jobs in care; and few signs that politicians know what to do to raise the status and rewards for what will soon be one of our most important industries.

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.

All innovation is about letting go, saying goodbye to things to create space for the new.