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Filozofia (Philosophy)
|
2023
|
vol. 78
|
issue 6
409 – 428
EN
Throughout the 20th century, quantum mechanics was celebrated as the ultimate proof that modern science is leaving behind deterministic mechanical materialism and admitted that it is dealing with non-material entities; moreover, the notion that our reality takes place through being observed opens up to a subjectivist denial of objective reality. Some quantum scientists themselves claimed that the only way to account for our entire universe is to presuppose a global external observer (i.e., God). The text rejects not only this direct theological solution but also the traditional “realist” stance which secretly relies on a divine dimension (the divine status of natural laws). It proposes a reading of the ontological implications of quantum physics which opens up the way for a consequent materialism, even if, from a traditional reading, this may appear to be an odd materialism without matter.
EN
The paper outlines principal difficulties which arise when trying to construct a consistent fundamental theory of elementary particles and fields. Different proposals how to overcome these difficulties are discussed.
EN
This paper argues for the following three theses: (1) There is a clear reason to prefer physical theories with deterministic dynamical equations: such theories are maximally rich in information and usually also maximally simple. (2) There is a clear way how to introduce probabilities in a deterministic physical theory, namely as answer to the question of what evolution of a specific system we can reasonably expect under ignorance of its exact initial conditions. This procedure works in the same manner for both classical and quantum physics. (3) There is no cogent reason to take the parameters that enter into the (deterministic) dynamical equations of physics to refer to properties of the physical systems. Granting an ontological status to parameters such as mass, charge, wave functions and the like does not lead to a gain in explanation, but only to artificial problems. Against this background, I argue that there is no conflict be-tween determinism in physics and free will (on whatever conception of free will), and, in general, point out the limits of science when it comes to the central metaphysical issues.
EN
The article discusses the possibility of strengthening Bell's theorem by eliminating the premise of determinism from the derivation of Bell's inequality. A recent argument due to H. Stapp purporting to derive a contradiction with the quantum-mechanical prediction from the counterfactually interpreted assumption of locality is critically analyzed. An alternative derivation is proposed, which is based on the assumption of locality, as well as Einstein's criterion of physical reality.
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