To expand on the question : how can we see and create images, recreate or create sound and smells in our head?
In: Biology
The imagination basically evolved for the benefit of being able to remember a prey animal exists, even if it hides behind a rock and is no longer in sight. This requires a creature’s brain to be able of remembering what the prey is, that it last saw it scoot behind a rock, and “simulating” it’s existence behind the rock, so it knows where to go to catch it. Eventually, because of evolution, this ability of catalogueing and simulating our environment in our brain became more advanced and capable, and that’s how you eventually end up with an imagination.
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