Why can’t you measure both the position and momentum precisely at the same time?

This is because there isn’t a classic particle. All the things we used to refer to as particles, such as electrons or protons, are actually quite different. These are objects that exhibit both particle-like and wave-like properties. They interact with particles but move like waves.

Let’s call them “wavicles” for the purposes of this answer.

Wavelength is a key factor in determining the momentum of a wavicle. The locations where the wavicle has an unzero value determine its position.

The wavelength must be greater than zero to have finite momentum. However, it cannot have a definite position. The wave nature of the wavicle is the source of the uncertainty principle.


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