Understanding capitalism is in some ways simple. At its best, capitalism rewards creators, makers and providers: the people and firms that create valuable things for others, like imaginative technologies and good food, cars and drugs.

The smug complacency of technology adverts disguises a pretty mixed picture, with too many people not connected, too many passive users of technologies designed for interactive, and far too much talk about empowerment but far too little action to make it happen.

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

Over 5,000 years, states have made surprisingly consistent claims about their duties. They have promised to protect people from threats; promote their welfare; deliver justice and also, perhaps less obviously, uphold truth - originally truths about the cosmos, and more recently truths drawn from reason and knowledge.

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.

Health is already a dominant sector in most societies and the one most guaranteed to grow.