TB: The Personal MBA (Kaufman)
Core Thesis
The core concepts of business — value creation, incentives, systems, human psychology — can be learned efficiently outside a formal MBA program. Business is one of the most complex and multidisciplinary human activities, and mental models are the best tools for navigating it.
Key Takeaways
On mental models and thinking
- Your brain works with a latticework of mental models. Hone the most fundamental ones and you can out-think smarter people.
- Better to be roughly right than precisely wrong. (Keynes)
- Better to have an approximate answer to the right question than an exact answer to the wrong one. (Tukey)
- If there is nothing that could change your mind, there is nothing tethering your beliefs to reality.
- Externalizing your thoughts (speaking or writing) allows re-input in a different form — different cognitive resources process the same information.
On human psychology and decisions
- Humans have a hard time paying attention to what is NOT present — Absence Blindness.
- Humans are optimized to perceive contrast, not to compare what we see with what could be there but isn't.
- We base decisions on information in the surrounding environment, not on counterfactuals.
- Behaviorism: you can control behavior by controlling stimuli.
On work and systems
- Working on the right thing is more important than working hard.
- Most people resist creating systems because it feels like extra work — when done right, it vastly decreases work.
- Goals are things you want to make progress on NOW. If you don't want to commit now, put it on the someday list.
- Turning results you don't control into goals is a recipe for frustration.
- Write down the two or three most important things to do today, then do them first thing.
On business
- A business: (1) provides value (2) others want/need (3) at a price they'll pay (4) satisfying expectations and (5) generating enough revenue to be self-sufficient.
- Three universal currencies: resources, time, and flexibility — flexibility is usually underrated.
- Trying to appeal to everyone is a waste of time and money.
- Planning is guessing. Plans are useless; planning is indispensable.
Mental Models
- Absence Blindness — explicitly discussed; humans can't see what's not present
- Incentives Matter — "we get what we reward for"
- Mental Models — the book's core organizing concept