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Of human auditory perception

It's been years since I read all that theory on auditory perception, but human hearing is actually the most "exquisite" of the senses.
We can distinguish about 10,000 different tones and changes in them and volume in a few femtoseconds (50,000th of seconds for those reading who don't know this alreeady).
What we can perceive is utterly remarkable.
Then take into consideration those other intertwined sensory pathways. For example, how is it possible to perceive below 20hz and above 20Khz, but there is enough evidence that we can. We don't perceive them precisely via the ear canal, it seems, but we do register them in the body somehow and the brain interprets and interpolates them with the normal hearing range.
As to quantum mechanics, what little I did understand in college and since scares the shit out of me!
Unclestu, I'm out of the audiophilia nervosa stage, so unlikely to try anything like the salt. Not a reflection on you, just something that happened to me based on life circumstances.


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