In the end, that's a blind alley - we have to get back to being able to think on our feet and react.

Somewhere like Russia or China, decision-makers have far fewer constraints on acting than in more open systems.

I see [activists] getting really angry that people won't just do what the evidence tells them, and that's not very helpful. You need to actually think why that is.

In the end, that's a blind alley - we have to get back to being able to think on our feet and react.

There's a diversion between economic reality - integration, global village, everybody depending on everybody else - and cultural reality, which is people feeling invaded, undermined, threatened, wanting to have "stand-your-ground" legislation all over the place. It's alarming because at the moment, the fear is outweighing the benefits, and that's partially because the benefits have been so unequally distributed that lots of people don't feel better off. They feel threatened, angry and despairing.

Activists can get very preachy about things. It's more about understanding people's own experiences and tapping into them.

There are always pressures on decision-makers other than just what is right or what is wrong.