Reason from first principles
Breaks a problem down to what is certainly true and rebuilds.
Claude 'slash codes': Thinking Styles
Think about [PROBLEM] from first principles. Step 1: list what we know to be true and cannot reduce further. Step 2: list the assumptions people usually make and mark which are habits, not facts. Step 3: build a solution using only step 1. Step 4: compare it with the usual approach and say what is different.