newideas.txt 7.6 KB

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  1. May 2021There's one kind of opinion I'd be very afraid to express publicly.
  2. If someone I knew to be both a domain expert and a reasonable person
  3. proposed an idea that sounded preposterous, I'd be very reluctant
  4. to say "That will never work."Anyone who has studied the history of ideas, and especially the
  5. history of science, knows that's how big things start. Someone
  6. proposes an idea that sounds crazy, most people dismiss it, then
  7. it gradually takes over the world.Most implausible-sounding ideas are in fact bad and could be safely
  8. dismissed. But not when they're proposed by reasonable domain
  9. experts. If the person proposing the idea is reasonable, then they
  10. know how implausible it sounds. And yet they're proposing it anyway.
  11. That suggests they know something you don't. And if they have deep
  12. domain expertise, that's probably the source of it.
  13. [1]Such ideas are not merely unsafe to dismiss, but disproportionately
  14. likely to be interesting. When the average person proposes an
  15. implausible-sounding idea, its implausibility is evidence of their
  16. incompetence. But when a reasonable domain expert does it, the
  17. situation is reversed. There's something like an efficient market
  18. here: on average the ideas that seem craziest will, if correct,
  19. have the biggest effect. So if you can eliminate the theory that
  20. the person proposing an implausible-sounding idea is incompetent,
  21. its implausibility switches from evidence that it's boring to
  22. evidence that it's exciting.
  23. [2]Such ideas are not guaranteed to work. But they don't have to be.
  24. They just have to be sufficiently good bets — to have sufficiently
  25. high expected value. And I think on average they do. I think if you
  26. bet on the entire set of implausible-sounding ideas proposed by
  27. reasonable domain experts, you'd end up net ahead.The reason is that everyone is too conservative. The word "paradigm"
  28. is overused, but this is a case where it's warranted. Everyone is
  29. too much in the grip of the current paradigm. Even the people who
  30. have the new ideas undervalue them initially. Which means that
  31. before they reach the stage of proposing them publicly, they've
  32. already subjected them to an excessively strict filter.
  33. [3]The wise response to such an idea is not to make statements, but
  34. to ask questions, because there's a real mystery here. Why has this
  35. smart and reasonable person proposed an idea that seems so wrong?
  36. Are they mistaken, or are you? One of you has to be. If you're the
  37. one who's mistaken, that would be good to know, because it means
  38. there's a hole in your model of the world. But even if they're
  39. mistaken, it should be interesting to learn why. A trap that an
  40. expert falls into is one you have to worry about too.This all seems pretty obvious. And yet there are clearly a lot of
  41. people who don't share my fear of dismissing new ideas. Why do they
  42. do it? Why risk looking like a jerk now and a fool later, instead
  43. of just reserving judgement?One reason they do it is envy. If you propose a radical new idea
  44. and it succeeds, your reputation (and perhaps also your wealth)
  45. will increase proportionally. Some people would be envious if that
  46. happened, and this potential envy propagates back into a conviction
  47. that you must be wrong.Another reason people dismiss new ideas is that it's an easy way
  48. to seem sophisticated. When a new idea first emerges, it usually
  49. seems pretty feeble. It's a mere hatchling. Received wisdom is a
  50. full-grown eagle by comparison. So it's easy to launch a devastating
  51. attack on a new idea, and anyone who does will seem clever to those
  52. who don't understand this asymmetry.This phenomenon is exacerbated by the difference between how those
  53. working on new ideas and those attacking them are rewarded. The
  54. rewards for working on new ideas are weighted by the value of the
  55. outcome. So it's worth working on something that only has a 10%
  56. chance of succeeding if it would make things more than 10x better.
  57. Whereas the rewards for attacking new ideas are roughly constant;
  58. such attacks seem roughly equally clever regardless of the target.People will also attack new ideas when they have a vested interest
  59. in the old ones. It's not surprising, for example, that some of
  60. Darwin's harshest critics were churchmen. People build whole careers
  61. on some ideas. When someone claims they're false or obsolete, they
  62. feel threatened.The lowest form of dismissal is mere factionalism: to automatically
  63. dismiss any idea associated with the opposing faction. The lowest
  64. form of all is to dismiss an idea because of who proposed it.But the main thing that leads reasonable people to dismiss new ideas
  65. is the same thing that holds people back from proposing them: the
  66. sheer pervasiveness of the current paradigm. It doesn't just affect
  67. the way we think; it is the Lego blocks we build thoughts out of.
  68. Popping out of the current paradigm is something only a few people
  69. can do. And even they usually have to suppress their intuitions at
  70. first, like a pilot flying through cloud who has to trust his
  71. instruments over his sense of balance.
  72. [4]Paradigms don't just define our present thinking. They also vacuum
  73. up the trail of crumbs that led to them, making our standards for
  74. new ideas impossibly high. The current paradigm seems so perfect
  75. to us, its offspring, that we imagine it must have been accepted
  76. completely as soon as it was discovered — that whatever the church thought
  77. of the heliocentric model, astronomers must have been convinced as
  78. soon as Copernicus proposed it. Far, in fact, from it. Copernicus
  79. published the heliocentric model in 1532, but it wasn't till the
  80. mid seventeenth century that the balance of scientific opinion
  81. shifted in its favor.
  82. [5]Few understand how feeble new ideas look when they first appear.
  83. So if you want to have new ideas yourself, one of the most valuable
  84. things you can do is to learn what they look like when they're born.
  85. Read about how new ideas happened, and try to get yourself into the
  86. heads of people at the time. How did things look to them, when the
  87. new idea was only half-finished, and even the person who had it was
  88. only half-convinced it was right?But you don't have to stop at history. You can observe big new ideas
  89. being born all around you right now. Just look for a reasonable
  90. domain expert proposing something that sounds wrong.If you're nice, as well as wise, you won't merely resist attacking
  91. such people, but encourage them. Having new ideas is a lonely
  92. business. Only those who've tried it know how lonely. These people
  93. need your help. And if you help them, you'll probably learn something
  94. in the process.Notes[1]
  95. This domain expertise could be in another field. Indeed,
  96. such crossovers tend to be particularly promising.[2]
  97. I'm not claiming this principle extends much beyond math,
  98. engineering, and the hard sciences. In politics, for example,
  99. crazy-sounding ideas generally are as bad as they sound. Though
  100. arguably this is not an exception, because the people who propose
  101. them are not in fact domain experts; politicians are domain experts
  102. in political tactics, like how to get elected and how to get
  103. legislation passed, but not in the world that policy acts upon.
  104. Perhaps no one could be.[3]
  105. This sense of "paradigm" was defined by Thomas Kuhn in his
  106. Structure of Scientific Revolutions, but I also recommend his
  107. Copernican Revolution, where you can see him at work developing the
  108. idea.[4]
  109. This is one reason people with a touch of Asperger's may have
  110. an advantage in discovering new ideas. They're always flying on
  111. instruments.[5]
  112. Hall, Rupert. From Galileo to Newton. Collins, 1963. This
  113. book is particularly good at getting into contemporaries' heads.Thanks to Trevor Blackwell, Patrick Collison, Suhail Doshi, Daniel
  114. Gackle, Jessica Livingston, and Robert Morris for reading drafts of this.