Quote from ATSTRADER:
... Now all of these traders Bought, them all of their Marketmakers got into the Short position...
They all start quoting market down, until the traders start selling their Longs back...meanwhile the trend down is developing...
Thus, the Crowd/Trend has inverse relationship
"Secret Rule #8" is proven.![]()
now it makes sense to me.

It is easier for me to understand as
demand(buy) exceeds supply(sell) on a certain stock, the stock price has a TREND to go up. and vice versa.