The Problem of Causality in an Indeterministic Science
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In the area of the physical sciences, the claim of strict determinism requires that the value taken on by any measurable, physical quantity for any observable, physical object or system at any time-instant should be accurately predictable on the basis of an appropriate set of quantities whose values at any preassigned, prior instant are accurately known. Loosely speaking, the present determines the future completely. Thus, the observable physical object may consist of two billiard balls on a collision course. The quantity whose value has to be predicted may be the time needed for the collision. The relevant quantities whose present values would suffice to predict the instant of collision may consist of the six spatial coordinates and the six components of the linear momentum of the balls. In conjunction with the laws of Newtonian mechanics, the knowledge of the present positions and momenta will perfectly suffice to predict the exact time of the collision.
KeywordsQuantum State Modal Logic Quantum Electrodynamic Compound System Quantum Mechanical System
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