Hello all, I am new to trading, and am trying to learn as much as I can. I've been reading a few books (like Day Trading for Dummies), but I still can't get one thing straight. So let's say, I'm going to start trading. Never done it before, so I'm going to be on a demo account. Do I start by creating a system? Doesn't a system require the formulation of a hypothesis, i.e. "Every time there is an MACD cross, and the Stochastic is over 80, and there is a hammer, there most likely will be an uptrend, and every time I see this combination I will place a trade, unless there is a news report"? How does a trader begin coming up with such a hypothesis? Gazing at historical charts, throwing all various technical indicators on it and noticing patterns? I hear a lot about systems, discretionary versus automated (you decide versus it decides for you). Does ever trader have a strict "system" which they have rigorously backtested? Or is this simply one way of trading? Thank you for any and all advice!