Applications
Create systematic processes for testing your models. Write down predictions before events unfold, then check outcomes against expectations. When predictions fail, investigate what the model missed rather than explaining away the discrepancy. This transforms vague beliefs into testable propositions.
Build criticism into thinking through pre-mortems and red teams. Before committing to important decisions, explicitly try to destroy your own reasoning. What assumptions, if wrong, would invalidate your conclusion? The goal isn't finding reasons you're right—it's discovering where you might be wrong.
Seek out smart people who disagree and understand their reasoning deeply. Charlie Munger's principle: find the smartest people who think you're wrong and understand why they believe that. Ray Dalio actively searches for people who disagree to pressure-test his thinking. The discomfort of confronting strong opposing views beats the comfort of unchallenged error.
Practice scientific method in everyday thinking without requiring laboratories. Observe patterns, form hypotheses, make predictions, test them, and update based on results. This requires intellectual honesty and systematic record-keeping more than equipment.