To err is human.

Higher level thinking has fewer constraints on being wrong than lower level subconscious thinking. Low level stuff tends to have some repetitive and evolutionary basis. Higher level thought tends to be more one off, less evidence based, and more exploratory until we get to the point of being an expert around particular concepts.

A huge amount of human thinking is being a parrot and repeating statements without a deeper understanding. For example when I say 1+1=2 I'm not thinking about it. If I say 638483+949948= calculation is necessary.

So in this, your voice has always been one of a somewhat faulty narrator, LLMs just may be further degrading the quality of the narration.

Left, right, higher, lower, male, female. People love to explain the brain by dividing it in half, or into poles.

Nothing more human than to label, simplify and categorize, even in the absence of higher quality information.