It’s very important to understand what deceleration is, and also what consolidation looks like. 9 times out of 10 we need some sort of deceleration to be present in the market before executing a trade… deceleration is a signal that price may be turning around (i.e. price was accelerating to the upside, but reached a support and resistance level such as a horizontal line, and then began to slow down, ‘decelerate’, and potentially reject that level).
On the other hand, when we are witnessing periods of consolidation in the market, we want to avoid executing trades. Consolidation is messy, sideways price action, signalling indecision. We don’t want to trade during periods of consolidation, instead, we want to wait for a clear breakout above or below the sideways price action.