You mistranslated. The very point is that the market is not the traders. It's like in law where law has made a distinction between the Nation and the People when the french Constitution has been written. The Market is not the Traders in a similar sense that the Nation is not the People. It is recognised by economists that an investor is mostly rational INDIVIDUALLY relative to its personal interest so when they talk about irrationality it is about the COLLECTIVE behavior. I say that they are somehow right that the collective behavior is irrational if one consider that relative to the Traders but that it is not so relative to the Market because the Market is not the Traders. Unlike law field where the Nation has been explicitly made the distinction between the Nation and the People, the distinction between the two, like efficiency, is a concept to be demonstrated. Since nobody has found any rational equation for the market the default paradigm cannot be contested. I pretend to have found such equation, now with the efficiency necessity it is impossible that anybody even academics can ever make a publication that can challenge the efficiency paradigm. In fact I don't say that the market isn't efficient, I say that I can precise what efficiency really means because the concept of efficiency is at the moment among academics themselves fuzzy so that there exist many contradictory concepts of efficiency, at the end it has become some sort of tautology.
Quote from hypostomus:
...you definitely need a Boswell for your Johnson. Permit me to translate and to gloss, and see if it still represents your argument:
"All traders believe, quite rightly, that market participants are irrational. In their mental world, market participants are able to change their collective mind instantaneously. However in the physical world on a macro scale, instantaneous action is impossible. This leads to the conclusion that the mathematics applied to the physical world cannot be applied to the mental world of trading.
This conclusion is erroneous, because the collective irrational acts of traders are constrained by the quantitative limits of the markets within which they act. Those quantitative limits ARE subject to analysis by conventional mathematics."
That's where I get lost. Feel free to say it in French if it's easier for you.
. Re-read what I said above: Market is not the Traders or the Crowd. If you model the market as if it was the crowd you would obtain what scientific researchers like J Doyne Farmer would obtain with agents modelling that is to say forecast of "little ripples" in his own words (see his article referenced on my homepage at