A lot of things have no objective measure at all. We still have to make decisions and act. And people will naturally see a perspective based on their own expe

A lot of things have no objective measure at all. We still have to make decisions and act. And people will naturally see a perspective based on their own experience and understanding. We put the burden of proof on one side or the other. A good example of this was the response to covid. People had completely different levels of optimism based on their background. A good practical tool we have is to just run a cost benefit analysis. But reduce your requirement for unproven benefit as the cost drops. So you require masks in a pandemic even when you don't know if they will work. Because the cost is low the loss is minimal if there is no benefit. This kind of decision is made all the time intuitively in things like renewable energy. Ultimately the political system has to answer these questions. And it deals with such questions all the time. I wonder how predictable international power politics or economics is in terms of "non-linearity and complexity".