Lots of people in the open system are very determined to try and strengthen evidence-based policy.

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.

We should look at how "the enemy" - people that you wouldn't necessarily agree with - have done change and see whether there's bits in there that we could learn from.

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.

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

There's a tendency for people who believe passionately in something to be so convinced of their rightness that if they just repeat themselves a lot at the person, that will convince them. And that hasn't worked on things like immigration or trade deals.

Lots of people in the open system are very determined to try and strengthen evidence-based policy.