The uncertainty principle at the heart of quantum mechanics from "summary" of The Fabric of the Cosmos by Brian Greene
The uncertainty principle, a foundational principle of quantum mechanics, is a concept that has baffled and intrigued scientists for decades. At its core, the uncertainty principle states that certain pairs of properties, such as position and momentum, cannot be precisely determined simultaneously. This means that the more accurately you know one property, the less accurately you can know the other. This idea challenges our classical intuition, where we are used to thinking of the world in terms of definite, well-defined quantities. In the quantum realm, however, things are not as straightforward. Particles do not have well-defined positions or momenta until they are measured, and even then, there is a fundamental limit to how precisely we can know these properties. The uncertainty principle has profound implications for our understanding of the nature of reality. It suggests that the world is inherently probabilistic, with a le...
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