When a chart is clean, a thin horizontal line feels decisive. It tells us exactly where support or resistance “is.” The problem is that this precision usually belongs to the drawing tool, not to the market.
Reactions occupy an area
Orders do not all enter at one price. Different participants act across a range, spreads vary, and brief probes can trade beyond an obvious high or low before price responds. A zone acknowledges that uncertainty without making the analysis vague.
Start with the reaction, not the rectangle
Find the visible departure first. Then ask where trading paused, compressed, or reversed before that move. Enclose the prices that best represent that interaction. The zone should explain the reaction; it should not grow until it catches every wick.
Keep boundaries useful
A wide zone creates no meaningful decision point. A narrow one may be broken by ordinary noise. Use the body-and-wick structure, timeframe, and volatility to choose boundaries, then keep them stable enough to review later.
A zone is a working hypothesis about where attention may return—not a promise that price will reverse.
Review the interaction
When price returns, record whether it rejects, accepts, or moves through without a clear response. That review is more valuable than shifting the zone afterward to make it look correct.
Technical analysis is educational and interpretive. It does not remove risk or predict outcomes.