The 'gem' that comes out of this, that equally applies to betting markets is, "Investors are all very similarly skillfull....as a consequence, that leaves a lot to luck!"
Some people say there's no such thing as luck, you make your own? I guess luck is really just the law of mathematics/statistics being for or against you (as in good or bad runs), provided your methodology for betting/trading is sound?
Being aware of the expectations for good or bad runs is something we should all be realistic about? Taking a testbed of results for a method and plotting the outcome can come up smelling roses until you thoroughly test it with a monte carlo simulation. I can pretty well say that any successful result replayed say a 1000 times will yield not only a percentage of bad outcomes but the average Expected Value you think you might have, could be halved!
Use these modelling tools and you won't blame luck anymore, as you'll be aware of the percentage chances of good and bad outcomes, and have factored that in to your staking plan.
