“Time is the most important factor of all and not until sufficient time has expired does any big move start up or down.”
— W.D. Gann, How to Make Profits in Commodities, 1941
Gann was a master technician. His work lives on.
My experience has shown that consideration of time cycles, including astronomic cycles, and applied mathematics often proves valuable in developing a complete picture of the vibrations of price movement.
No matter how good the analysis, there never is certainty.