No successful strategy ever has been based on price. Price isn't stationary so you can't do anything with it. You need to be looking at the log returns. Price is completely irrelevant, at least for equities.
Sorry, but that is wrong. All I use is price and time. See Elliot Wave Theory. Most indicators are perfectly correlated with price meaning unless you are a HFT you can't trade fast enough to act on them.
It has changed and it is just observations of competing waves of pessimism and optimism and the patterns they demonstrate. I'll put a model trained on TQQQ and SQQQ price and time data only. I will bet you 5k mine will beat yours using whatever inputs you choose over any reasonable time you specify.
