....not even sure what he said.
I think he meant you need a perspective on the market in order to trade, flag being one reason to enter for some people (opinion). So you "would care about the prior pattern.."
Others will just buy and sell in the now, based on other criterias, ie. ETFs will always buy and sell regardless of patterns - even disrespecting the patterns?
What's missing are all the other hidden reasons to make trading decisions, both technical and fundamental ones
Ie. any type of fund may have various criterias, also regardless of patterns, though still more or less valid.The foundational misunderstanding of price patterns being everything, or even relevant.
Still, good query!