Lessons from different fields:

1) Advertising: We overestimate our capacity for independent thought.

2) Poker: Life is probabilistic. We can do everything right and still lose.

3) Architecture: We're influenced by our environment, especially when we don’t realize it.
4) Sports: Momentum is the great equalizer. It strengthens the weak, and weakens the strong.

5) Logistics: Most of the economy is invisible to you. The world is way, way bigger than you think.

6) Politics: People's stated preferences can differ widely from their revealed ones.
7) Gambling: Don't give people consistent rewards. Vary the size and frequency of rewards instead.

8) Investing: A small number of events account for the majority of outcomes.

9) Writing: If you read what everybody reads, you'll think what everybody else thinks.
10) Coding: Don’t under-estimate the power of a computer with internet access.

11) Comedy: The deepest truths are hidden behind a veneer of humor.

12) History: The wisdom of civilization is written and forgotten, written and forgotten, written and forgotten.
13) Surgeons: In times of stress, use a checklist.

14) Nutrition: Eliminating junk is the fastest path to self improvement.

15) Restaurants: People over-estimate how much they value good food, and under-estimate how much they value ambiance and aesthetics.
15) Music: Many of humanity’s best creations are hundreds of years old.

16) Manufacturing: Quality and quantity aren’t always add odds with each other. Sometimes, you can have more of both.

17) Public Speaking: Laughter is the fastest way to create trust and connection.
18) Cooking: Your outputs are only as good as your inputs.

19) Private Equity: Avoid competition and remember that you’re not immune to base rates.

20) Growth Marketing: In the fastest growing Silicon Valley companies, customers become marketing advocates for the product.
21) Tour Guide: People don't just want to learn. They want to be entertained.

22) Golf: You can't predict how your body will respond to extreme stress and nervousness.

23) Sales: Time kills deals.

24) Photography: There's more beauty in the mundane than the extraordinary.
25) Gardening: At the end of the day, Mother Nature rules the world.

26) Map-Making: All maps are wrong, but some are useful. The map is not the territory.

27) Marathon Running: Luck matters. Every game privileges a certain genetic profile.

28) Weightlifting: Put in the reps.
29) Painting: Reality is more complicated than you think.

30) Economics: The harder it is to do something, the less people will do it.

31) Photography: The world is filled with opportunities you'll find only by seeing the world differently.
32) Trading: Looks for opportunities with big upside and low downside.

33) Hollywood: There will be hits, but nobody can predict them.

34) Philosophy: Every great philosopher is wrong in interesting ways, so don’t let facts get in the way of insight.
35) Meditation: Things that look easy can be arduous.

36) Running: Some things never get easier. You just get better that them.

37) Airplanes: Humans are quick to adjust to their new reality. An activity can go from impossible, to marvelous, to mundane faster than you think.
38) Bitcoin: You can create billions of dollars in value without ever revealing your identity.

39) Urban Planning: Top-down planning sucks the life out of culture.

40) Design: Consumers can think beauty is subjective, but every creator knows it‘s partially objective.
41) Religion: One person’s crazy is another one’s gospel.

42) Hospitality: People love to be delighted but hate uncertainty.

43) Marketing: Great brands have a narrow distribution of outcomes, so it’s better to be good all the time than exceptional some of the time.
44) Hedge Funds: If you want to win, your worldview can’t match conventional wisdom.

45) Personal Training: Many people know exactly what to do, but won’t take action until someone holds them accountable.

46) Biology: Our brains are made for survival, not understanding reality.
47) Online creators: When the costs of creation are low, being prolific is the fastest way to improve your craft.

48) Tailoring: Everybody is different.

49) Retail stores: Everybody is different, but simple categories reduce costs and satisfy the vast majority of people.
50) Universities: Say all you want about learning, but who you know usually matters more than what you know.

51) Tabloids: People tend to have divergent high-brow tastes but similar low-brow ones.

52) High school tennis: You will win the game by simply reducing unforced errors.
You can follow @david_perell.
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