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The Planck length does not mean anything like space quantization. It's just a length that pops out when you combine several physical constants. The values of th

The Planck length does not mean anything like space quantization. It's just a length that pops out when you combine several physical constants. The values of those constants mean that the Planck scale is likely to be roughly where gravitational and quantum effects are both relevant but other than that it has no physical significance. I have no idea where this idea that space is fundamental discrete, and divided up into chunks of Planck length voxels or something comes from, but there is absolutely no evidence for it.

mrguyorama 3y ago
>I have no idea where this idea that space is fundamental discrete, and divided up into chunks of Planck length voxels or something comes from Like everything else in quantum physics, this comes from various people who don't even know algebra listening to people who work all day in algebraic fields and number theory try to explain concepts that don't make sense without those mathematical foundations and actual experience in physics papers. No, a quantum computer isn't "trying all combinations at once" No, the planck units aren't fundamental measurements of the universe No, quantum entanglement doesn't allow you to transmit information faster than light etc. I'm plenty guilty of this, I'm no physicist and I graduated after linear algebra, which I didn't do amazing in. The examples I reference are just the ones I was lucky enough to learn from people who managed to demonstrate and describe the underlying math enough to convey meaning. Plenty of educational and ostensibly knowledgeable physics and science youtube channels for example still run with those misconceptions.