Uncertainty Principle

The Uncertainty Principle (also known as Heisenberg's Uncertainty Principle) states that there's a fundamental limit to how precisely we can know certain pairs of physical properties simultaneously. Originally applied to particle physics—where it showed we cannot precisely measure both a particle's position and momentum at the same time—this principle extends beyond quantum mechanics into a broader philosophical understanding of knowledge limits. The more precisely we measure one property, the less precisely we can know another related property. This isn't due to measurement limitations but represents an inherent feature of quantum systems.