This is basically my point. Didn't particularly mean to criticize davidxc, more the tendency for people on HN to assume that because they're good at programming they must also know a lot about economics, the stock market, and etc.
Economics happens to have high stakes, so people flock to it. Nobody really knows what's going on.
It's like I am no physicist, but I know that anyone who claims he's invented a Perpetual Motion machine is either a fraud or made a mistake.