Aepervius
Non credunt, semper verificare
Complex topics such as exponential error growth from initial conditions in systems governed by non-linear dynamics? Actually, it kind of is on a par with rocket science (luckily I have experience of both! Hurrah) but not for your average ISF reader, who apparently can't tell the difference between the Guardian and the Express.
Actually we were more thinking of the sun, but carry on. See exponential error growth is about precise prediction. But trend can be be predicted over what we call long term (1 or 2 year or so) and such trend have been predicted. If you had bothered to read the previous link which was speaking of economical expert, people which are a tad bit better at prediction that your crowing guy in your article you would have known that.
But keep harping that what was not predicted, did not happen. On the other hand fall of the pound and cost of borrowing up did certainly happen.