Figure 13-8 illustrates one of the most important cycles that would
have been included in the time histogram of the prior chart. It was the
100 percent cycle of the swing from the 2/1/07 high to the 2/12/07 low,
which lasted seven trading days. This was projected from the 2/22/07
high. Note that the 3/5/07 low was made exactly seven trading days from
the 2/22/07 high. This is another good example of time symmetry