And of course, I don't know of which systems you refer. When I think of Pinker, I want to use an example that includes more than one country. I will use the example of driving a car from Canada through multiple countries to Panama. 20 years ago, this was dangerous, unthinkable. While you encounter many systems along the way, and I'm thinking systems of infrastructure, policing, border security, ... they are all working well enough now for you to make the trip and they are still improving overall.