Observation of the state of a quantum system is known to ‘shape’ the system’s evolution. The observation in this case involves the (physical) interaction between the quantum system and the device that is monitoring its state. -1- J. Math. Phys. 18 (1977) Phys. Rev. A 41, 2295–2300 (1990)   Physica A 170 (2), 306-325, (1991) Foundations of Quantum Theory and Consciousness