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.

The wrongful arrest of tens of thousands of British Muslims after the September 11 attacks can be explained by the very poor intelligence the police had, and, just possibly, excused by the fact that a terrorist action in Britain linked to British Muslims would have been hugely damaging.

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.

Learning isn't something you should only do solo.

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

Computing should be taught as a rigorous - but fun - discipline covering topics like programming, database structures, and algorithms. That doesn't have to be boring.

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