We compete not to just make up the numbers, but to do it right, with a full programme to achieve success on the track and meet all our other measures of success, too.

Cities are the future of humanity. How we design them will determine whether we create sustainable, equitable communities or contribute to further environmental and social decay.

I think intelligence is best understood as an entity that has the ability to improve a metric through repeated exposure over time. By that definition, machine learning algorithms are learning systems — they get better with more data and more exposures. A dog is a learning system. A cat is a learning system — you teach it a trick, reward it a few times, and it just does it from there on. And humans, of course, are the ultimate example of a learning system.

Salman Abedi, Khalid Masood, Khuram Butt, all of these people and the people in ISIS, Al Qaeda, Boko Haram, Al-Shabaab… We tend to think sometimes that they are extremism. But the reality is they didn't breed extremism. Islamist extremism bred them.

One of the best analogies I've heard in this scenario is that, just as you wouldn't want a surgeon to go from one operating theater to the next without having washed their hands, you don't want a manager to go from one context to the next without being in a position where they can actually do some good—or at least do no harm.