
Bishop Hill mentions this book: Superforecasting: The Art and Science of Prediction
He tells us…
Specialists are considerably worse at making predictions than generalists – is now quite well known, although less so among the general public and media than it should be.
The generalist forecasters were better than the experts because…’ It was more about independence of mind, the ability to constantly recalibrate and to question assumptions, the ability to think in terms of probabilities rather than in black and white terms.’
A comment on Amazon for the book summed it up…..
If you want to understand what will happen in the future, do you ask a distinguished tv pundit, or do you go to a chimp throwing darts at a board? Philip Tetlock’s very readable book explains that you’d be better off with the chimp. Sadly talking heads are mostly good at telling you what is going to happen, and then explaining afterwards why it didn’t – or insisting against all the evidence, that actually, it did.
Harrabin a ‘distinguished tv pundit’ or a climate lobby flunky?
The opposition have called a debate on the Cumbria floods tomorrow, and so the House of Commons Library has issued a briefing paper to MPs. There’s lot to amuse. For example, I read with interest that:
…there is a general understanding that climate change is likely to be linked to increased winter rain in the UK.
I think it’s fair to say that this is complete drivel.
Interestingly, the “Further Reading” section also includes, among other things, a suggestion that MPs might like to take a look at a paper entitled “Floods, Climate Change and Flood Defence Investment”, published by Friends of the Earth.
Which is odd, because the first-named author of the briefing – one Sara Priestley – turns out to have worked at Friends of the Earth before moving to the House of Commons.
What makes me think that MPs’ briefings have something of a bias?
To be fair she only worked there for two months….but it could I suppose indicate where her heart lies….
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Jon Donnison 
