xjo weekend zoomba lounge, page-66

volt...

'variation' in cycles will always affect 'exact'
historical predictions, i agree history will repeat
but in its own 'natural' progression...

hurst speaks about variation:

"each cyclic component varies from the ideal
in that magnitude varies slowly as time passes.
As magnitude increases, duration also increases.
As magnitude decreases, duration also decreases."

"In addition to this primary source of variation,
deviations from commonality also contribute to
differences from issue to issue, major deviations are:

1. relative magnitudes and durations of cyclic
components differ slightly from issue to issue

2. time synchronization is not perfect. A cycle high
or low one issue will not necessarily occur
at exactly the same time as in another

3. Several components may tend to dominate in a given
issue at a given time, while others may dominate
in other issues at the same time

these statements are part of the third element of
cyclic model"