Quote from Equalizer: At the end of the day only one thing matters. Can you make money?
I think anyone can make money at the end of the day and it doesn't even have to be human to do it, likewise they can loose.
Math has no emotions, it doesn't care about anything but yet provides a answer. You can take or leave that answer. Let's put the math question this way.
Instead of trying to prove math can predict the markets let's consider way's it can be made to fail. In the end we will be left hopefully with what works. The good ole trial and error learning method.
Is it a fact that on catastrophic news to the SP that we can expect Bonds to spike down? If this is not true then we have eliminated one thing that we trust does not work. We continue on this path until we have no excuse to not own the world. After eliminating everything that does not work, that is.
mb

