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It's not a reason to chuck out hi fi playback, but we have to keep in mind its importance in the scheme of things. We have to know we are reproducing something already severely flawed. The speakers and the microphones are usually directional units. And sound is typically omnidirectional in source. Even the omnidirectional microphones capture the sound down into mono or stereo.
I'm surprised sound reproudction sounds as great as it does!
I agree with almost all of what you've said @garbulky but I don't agree that sound is typically omnidirectional. It really depends on the instrument and the frequency range of interest. Voices and wind instruments etc. tend to be quite monopolar/directional, particularly at high frequencies, while most drums tend to be more dipolar. String instruments more closely approach omni, although they tend to have quite chaotic polar patterns which are moreover affected significantly by the position of the player in relation to the instrument and the listener.
The other main limitation which I don't think has been mentioned directly is the fact that even omni mics capture reflected sounds from all angles around them in the recording space, while in reproduction these reflections are then projected to the listener from just two locations (the speakers) in the reproduction space.
There are no real solutions with current technologies, just better and better illusions.
For these reasons I see stereo recording and mixing as more of a craft in itself - a way of capturing a particular acoustic events in a particular way that is suited to stereo reproduction - rather than as an attempt to capture a faithful facsimile of the original acoustic event.
So not "completely flawed", because in my book the goalposts are simply in a different place. The stereo recording and reproduction system is capturing and manipulating acoustic sounds in a particular way and utilising them to fulfil a purpose other than the faithful reproduction of those acoustic sounds. And at its best, doing it extremely well.
Bit of a ramble here sorry ppl
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