A mental model is an explanation of how something works. The phrase “mental model” is an overarching term for any sort of concept, framework, or worldview that you carry around in your mind. Mental models help you understand life. —James Clear

1% rule

• Pareto principle 80/20 rule
• Parkinson’s law - Work expands to fill time
• Ikigai
• Marie kondo
• Hara hachi bu
• First principles