Matt’s Reviews: Superforecasting – The Art And Science Of Prediction by Philip E. Tetlock and Dan Gardner

book cover: Superforecaster by Tetlock and Gardner

  • Publisher ‏ : ‎ Crown
  • Publication date ‏ : ‎ September 13, 2016
  • Edition ‏ : ‎ Reprint
  • Language ‏ : ‎ English
  • Print length ‏ : ‎ 352 pages
  • ISBN-10 ‏ : ‎ 9780804136716
  • ISBN-13 ‏ : ‎ 978-0804136716
  • Author: Philip E. Tetlock
  • Author: Dan Gardner

Superforecasting: The Art And Science Of Prediction by Philip E. Tetlock and Dan Gardner came about partially as a result of work done for a Intelligence Advanced Research Projects Activity (IARPA) tournament to get better at predicting world events. Tetlock and team put together a crowd sourced group of volunteers who worked to predict answers to various questions with a degree of certainty (and uncertainty), then identified the best of those (super forecasters) and ran through more questions. They formed teams of forecasters and super forecasters and measured how they did.

It was a very interesting book (to me). It had a good combination of stories about the super forecasters and how they worked to make their forecasts and also stories of not so super public pundits and their lack of skill and precision in forecasting…and thoughts on how we all can be better at predicting things in the future.  A few thoughts:
  • Some things are too far in the future or just to random to predict
  • Take big unanswerable questions and problems and break them down into smaller sub-questions that you can address
  • Make sure you are gathering a diverse set of data and weighing it appropriately. Question your own biases
  • Take into account all the data. Don’t overreact to new info just because it’s new and fresh in your mind, but don’t under react because news disagrees with your internal biases
  • Be open to new information. If you are working in a group, encourage others to challenge your assumptions and your data. Be open to contradictory evidence.
  • Realize why you were right (or wrong) about a prediction. Sometimes you were lucky and guessed right for the wrong reasons. Sometimes an extraordinary event occurs that makes your prediction wrong even though it was based on sound evidence. Look back at what you have predicted and why and measure how you did and why.
This book might make you better at forecasting the future. Even if it doesn’t, it provides some insight into how and why forecasts go well, or not so well.
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