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steidlmayer quotes

Steven Hawkins in Steidlmayer on Markets:

"I have noticed that if a market is going to unfold into a neutral day, the expansion above or below the [IB] will not exceed "x" number of ticks."

"In the T-Bond, I have noticed that 4 ticks is the outer boundary of expansion that one can lean against with some degree of reliability"

My question is: This person has "noticed" a tendency in the markets. Why hasn't he back tested this tendency to produce black and white results of how often it has happened?