Thank you. We welcome the question.
How do we make it happen? We've been struggling with that for a while. At first, the focus on prevention and the need to invest in that was pooh-poohed, because there was no evidence that it worked. That is now profoundly untrue; there is evidence everywhere, so it's not based on lack of evidence.
Secondly, I think there's been a huge misunderstanding that people can just change their behaviour without help, that if you just excoriate people to stay in school or eat better, this will work. It won't work. The government has accepted that in certain areas, regulation and interventions and exceptions are needed. When they have done that, through a comprehensive approach, it has always worked. I guess what we're saying is, let's become evidence-informed as governments and do what obviously will work and where the downstream benefits will result in economic benefits over the longer term.
Does it take a bit of a leap of faith, because it's not going to happen in two years, it's going to happen in twenty years? Absolutely. But all the evidence is in, and it's time we accepted it and moved on.