Quote from logic_man:
I'd love to know where you guys are getting the proofs for this statement. If I develop an objective edge via a positive expectancy algorithm with very explicit rules, unless I tell the details to someone else, how is that edge going to be exploited to death? If I'm the only one trading those exact prices where I buy and sell for the exact reasons I buy and sell, how would the market know to evolve so that future buys and sells I make would turn to negative expectancy trades? I don't know about you, but every time I buy or sell at a given price, I'm not the only one buying or selling at that price. There are hundreds, if not thousands, of contracts being bought and sold in the seconds immediately preceding my trade and the seconds immediately following it. The market doesn't know that I'm in there buying or selling based on my specific algo. How could it?
The market isn't a mind-reader and doesn't really give a shit if someone makes a ton of money, just like it doesn't give a shit if someone loses a ton of money. The market is completely indifferent either way. As long as you don't try to take more liquidity at your entry price than the market has to offer at that price, I don't see how the market would even know it was you entering at that price and therefore wouldn't know that it had to react a certain way just to make sure that your "edge" was undermined.
Can you explain to me how all that market magic is supposed to happen?