Ray Dalio sure is a high achiever

Business Insider have an interview here with Henry Blodget

  • "What I did every time I made a mistake - they became painful mistakes - but with time I realised that reflecting on those mistakes would give me gems
  • And I'd write down a rule"

Those rules accumulated into investing principles, which Dalio then translated mathematically into computer algorithms so he could test their accuracy by applying them to past market movements:

  • "And by putting all those rules together, and then having these algorithms, the computer could replicate my thinking
  • But it could actually think better than I could because what it would do is ... it could process more information, it could process it faster, it could process it less emotionally"

More here