How can you tell that a tall man in a trench coat isn't just a kid with a second kid sitting on their shoulder?
How can you tell if the series of dots you perceive as an LCD isn't just a photorealistic painting glued to the front of the screen?
How do know if your nervous system isn't just your bain in a vat connected to a matrix-esque electrochemical system?
How can you tell that anything you believe to be real isn't just a sophisticated simulation?
How can you tell if someone on hackernews isn't just making a specious argument just for the sake for arguing?
