I must point out that today's prediction by the OP was wrong only in the sense of the orthodox "Copenhagen interpretation" of the quantum mechanics. If you accept the "Everett interpretation" (also known as the "many worlds" interpretation), then it's possible to argue that the EUR-USD did drop today, but in a parallel Universe. Thus, the original prediction could have been correct. We just would never know.
Quantum mechanics, and the uncertainty/entanglement principle in particular, cannot be applied to market movement. The uncertainty principle applies to phenomena that is in a state of flux until they are observed. But all extant phenomena are observed, which is how we know they exist. Everything that exists in the universe has already been observed by every other thing that observes it. Ergo, everything that exists cannot exist in a state other than that in which it is, since it has already been observed to be in that state. This may be hard to explain... Mreh, I don't think I can put it into proper words. I do not believe there can ever be a true state of entanglement that can work to any trader advantage, much less on a level that any physical entity could make use of. Fun for math and physics geeks, but a total waste of time if one tries to employ it to trading. Because there is nothing to employ. There is no uncertainty. It was already observed, so the wave function has collapsed. Fundamental analysis would be better than quantum physics, I reckon', to make some coin daytrading the market.
Tell your scientists friends not to quit their day job. I hope you are not putting real money on this.