Re: lord luv a duck.
Alistair, it's quite the rare person who understands these things. Of course, the issue is not that they can't it's that they won't. Wikipedia for one has a long list of cognitive biases.
And at that it leaves out a few. When I was trading, I referred to that list a lot, so as not to fall prey to one of them myself, while recognizing them in potential "other sides of the trade" - and that's how I retired young.
There's even a website now that specializes in pointing out that you can't grow forever on a finite planet. And only a few have even looked at it...
A choice quote or two:
Upton Sinclair: “It is difficult to get a man to understand something, when his salary depends on his not understanding it.” One can obviously extend this thought to "profits".
HL Mencken: Too many goodies to list here (Even prophesied the current CIC) so just enjoy the page: