Demand zones are psychological areas where people make decisions. If one zones can't hold up, maybe the next one will. But we have to get to the next one first. Getting there is the fun part.
There are certain levels at which unfilled orders are still waiting. I can't see them, but when price moves away from certain levels fast, that means something.
In my attempt to understand support and resistance, I have identified areas where I believe price will reverse. Nothing is promised but an idea can become real.