Here I go at length discussing training channels. Especially flattened trading channels. It is important to note that sideways action is important - at least as important as the uptrends and downtrends. In my last video I show a "support cloud" and a "resistance cloud" (Those are my terms, I've never seen anyone else use them) and they are built by sideways trading channels.
Here I get into that idea a little bit more and try and explain why historical data shows me they are important. It also may help explain why I think we are in one for the time being.
I hope you learn something, and thanks for your time!