Can you stop being so logical? 

Quote from logic_man:
By saying this, you assume that the trader who first discovered a valid objective fixed TA system would put it in the public domain. Why would a trader give away an objective fixed TA system that was valid? What market would there even be for such a system? If the person who developed it was convinced it was valid, the selling price would be far above what anyone who had not traded the system would pay, so there would never be a transaction in that "market".
So, that valid objective fixed system would never become a "green light red light" public system because the person who discovered it could never get a price equivalent to its value for it.
The implication of that fact is that there could be dozens, hundreds or even thousands of "objective fixed TA systems" in the world and, unless you were the original developer, you'd never know it.