The Comprehensible Cosmos: Where Do the Laws of Physics Come From?

The Comprehensible Cosmos: Where Do the Laws of Physics Come From?

• ISBN13: 9781591024248
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"The most incomprehensible thing about the world is that it is comprehensible." â€" Albert Einstein In a series of remarkable developments in the 20th century and continuing into the 21st, elementary particle physicists, astronomers, and cosmologists have removed much of the mystery that surrounds our understanding of the physical universe. We now have mathematical models that are consistent with all observational data, including measurements of incredible precision, and we have a good understanding of why those models take the form they do. Although current theories will probably be superseded by better, more detailed theories as science continues to advance, the great success of contemporary models makes it likely that scientists are on the right track. In short, the cosmos is undoubtedly comprehensible.

But the question arises: Where do the "laws" revealed by the mathematical models come from? Some conjecture that they represent a set of restraints on the behavior of matter that are built into the structure of the universe, either by God or some other ubiquitous governing principle. In this challenging, stimulating discussion of physics and its implications, physicist Victor Stenger disputes this notion. Instead, he argues that physical laws are simply restrictions on the ways physicists may draw the models they use to represent the behavior of matter if they wish to do so objectively. Since mathematical descriptions of data must be independent of any specific point of view, that is, they must possess "point-of-view invariance" (maximum objectivity), they naturally conform to certain fundamental laws that insure that objectivity, such as the great conservation principles of energy and momentum. The laws of physics, however, are not simply an arbitrary set of rules since the observed data beautifully demonstrate their accuracy.

For those fascinated by how physics explains the universe and affects philosophy, Stenger’s in-depth presentation, complete with an appendix of mathematical formulas, makes accessible to lay readers findings normally available only to professional scientists.









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