What you are missing is the size of the trader.
You, me, anyone on ET, can enter/exit an entire position and *rarely* have to worry about bringing down the market with selling pressure, or *creating* a surge in price by trying to buy in.
What you are missing is the size of those who might need a week or two to get out of a position. This is readily discernible in price action, and readily demonstrated in "T/A" tools. The problem is, that by the time you discover such a heavy and trending agenda, it may be dead (or ordered *reversed*) by those who brought it to market.
We are but little speed boats in a world of super-tankers. We are nimble, we are quick, but we do NOT set the agendas, nor do those who work those agendas notice in the least should they run right over us.