An important feature of this theory is the unity of psi. PK, ESP and precognition are all aspects of the observation process. In fact, the basic process may be seen as similar to the idea of retro-psychokinesis in that the observation of the system would appear to affect the outcome of the system, no matter at what time that outcome would be said to have been determined in a classical sense. ESP then becomes the selection of the system to correspond to the prediction. Psi is also seen as being independent of space and time.
Psi is also independent of task complexity.
Again, the important feature is the act of observation, so it is only the feedback which is important. This does mean that some form of true feedback to the oberver is vital. However, this again brings up the divergence problem although in this model, while future psi agents can also have an effect, it is argued that they can act only to increase the variance of experimental results rather than change what has already been observed. Foundations of Paraphysical and Parapsychological Phenomena. It is well known that there is an degree of uncertainty associated with any measurement, with the actual measured values showing small fluctuations around a mean value.