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People don't use the metaphor literally because it doesn't make sense from a 2nd Law of Thermodynamics perspective. If the Matrix was created by AGI for thr sake of producing energy, it would make no sense at all to keep humans around in pods, because it costs them more energy to keep a human alive than what they get out of the human. The movie producers realized the problem in later movies and added some mumbojumbo…
> The movie producers realized the problem in later movies and added some mumbojumbo that they were keeping humans around for their neural networks, but that still requires the viewer to take it on faith. I suppose it could just be a myth, but I always thought that was the original premise and it was hollywood execs who insisted on making the matrix about batteries on the assumption that audiences wouldn't understand…
It's a myth. It was always batteries in the script, but when Neil Gaiman was hired to do a Matrix short story he added lines about using the humans as a neural network because he thought the battery thing was stupid. I've seen this well documented online so you should be able to find it if you try.