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I will try to write something about this topic.
There is a lot of misinformation and voodoo about this topic. It's in some sense similar to the Black & Scholes magic non-sense formular the whole world is using to define the 'value' of derivatives. It is interesting that the people propagating the wisdom and infallibility of the free markets are the same people persuading these same markets' participants that there exists - is even a need for - a magic formula defining the price of an asset. So what are markets for in the eyes of these fake free market enthusiasts ?