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How do I know if what I see is actually there?
Garry Trethewey
Arkaroola, South Australia
This is a pretty big question for lots of 50-year-olds, let alone for our 10-year-old questioner. There are whole areas of philosophy and neuropsychology as well as other arcane fields devoted to this.
Basically, you can’t know if what you see is actually there.
You might be hallucinating or under the influence of drugs, or have a brain tumour. You might actually be a green lizard on Mars, under the influence of a magician, who makes you believe you are an Earthling, writing…
