Economic growth is the absolute foundational stone for everything. We've got to turn that around, which is why we've made it our central mission. I'm well aware that there is a model of growth that says you could turbo charge even more London and the southeast and then redistribute for the rest of the country. So one really big supply side reform that Stammer is looking at is planning. Now, liberalizing planning law is one thing the government can do overnight, which would make a dent on Britain's poor productivity without spending a penny.