I take “Optical delusion” as a malaprop implying the misapprehension is forced from within. I posit that individuality is merely a powerful illusion or component of life, caused by the nature of our direct awareness, and consciousness only of our own thoughts and sensations. This limited native awareness is reasonably based on the obvious limitations of our individual nervous systems. Most people are not even aware of their own ‘colonial’ nature; that our bodies are only about 90% human by mass, and 10% human by number, the balance being microbes of many types, essential to healthy life and benign.
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