In recent years, the hypothesis of the existence of worlds other than our world has been strengthened in physics. This theory has been developed in physical contexts such as string theory, chaotic inflation, and quantum gravity, and the way these worlds are formed has been explained at four levels. It seems that years before such theories were proposed in physics, philosophers such as Leibniz had acknowledged the existence of other worlds in their philosophy and considered their existence possible. In Leibnizian thought, this theory, known as possible worlds, is explained in relation to rational truths (as opposed to actual truths). Philosophers have presented two different interpretations of this theory, called effectualism and actualism. The issue that the present study seeks to answer is the degree of compatibility of the many-worlds theory in physics and philosophy. The fact is that it is not easy to comment on the scientific or philosophical nature of the many-worlds hypothesis. The findings of the study show that the many-worlds theory can be considered a philosophical-physical theory; although physics and philosophy approach this hypothesis with a separate approach, they complement each other and help us solve the problem of the quiddity and quality of the existence of many worlds.
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rabbani, A. , ramin, F. and yazdani, M. (2025). A Comparative Comparison of the Many-Worlds Theory in Physics and Philosophy. New Intellectual Research, 10(19), 9-36. doi: 10.22081/nir.2025.65476.1391
MLA
rabbani, A. , , ramin, F. , and yazdani, M. . "A Comparative Comparison of the Many-Worlds Theory in Physics and Philosophy", New Intellectual Research, 10, 19, 2025, 9-36. doi: 10.22081/nir.2025.65476.1391
HARVARD
rabbani, A., ramin, F., yazdani, M. (2025). 'A Comparative Comparison of the Many-Worlds Theory in Physics and Philosophy', New Intellectual Research, 10(19), pp. 9-36. doi: 10.22081/nir.2025.65476.1391
CHICAGO
A. rabbani , F. ramin and M. yazdani, "A Comparative Comparison of the Many-Worlds Theory in Physics and Philosophy," New Intellectual Research, 10 19 (2025): 9-36, doi: 10.22081/nir.2025.65476.1391
VANCOUVER
rabbani, A., ramin, F., yazdani, M. A Comparative Comparison of the Many-Worlds Theory in Physics and Philosophy. New Intellectual Research, 2025; 10(19): 9-36. doi: 10.22081/nir.2025.65476.1391
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