The structure of time can not be calculated. It must be percieved. I believe that events in the past, from the perspective of the observer, are affected by events in the present, or future. Your decision to take a perticular road causes the mechanic who worked on your car yesterday to forget to check the belts and your car die's in front of a sign that you might not have noticed otherwise which leads you to an important realization. If you do not take that road, the mechanic does check the belt yesterday and you continue on your way as there is now no reason to stop because you will not see the sign. The time stream flows at different rates.

The diagram above is intended to illustrate the concept. The practice of magick must, if valid at all, involve temporal recursion. If we allow that the observer is the center of the phenomenon bubble and that the act of observation alters the state of the system (a proven concept) then the observer alters the time stream. We are limited in our understanding of time. Space/Time in the classical sense is spherical. Modern advances in physic's has shown that spatial dimensions and temporal dimensions are components of a single system. We must conclude that time has "spherical" properties as it is a part of space. Yes, time is a vector, but we are not. If we further conclude that consciousness is a quantifiable property then it may exist in differing levels in different observers.

The greater the range of consciousness the greater the level of observation and therefor the greater the potential for change in the system. The above diagram illustrates the concept of range of consciousness. Since the observer is only ever located at the point of now and observation is omni-directional the past will be equally affected by the phenomenon of observation and potential change in system state. The P.O.V. of the observer is the zero point, the center of the system observed. Mltiple observation points are relative to each other. Each would be the center. The center point being created by the existance of the observer.