Science can map which brain areas light up when you see red. What it cannot yet explain is why there is an inner feeling of red at all. In 1995 philosopher David Chalmers called this "the hard problem of consciousness".
Truth label: Debated. Serious people disagree. You get both sides.
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Easy versus hard
The "easy" problems are how the brain processes information. The hard one is why any of it feels like something from the inside.
The big camps
Some think consciousness comes from the brain. Others think it is a basic feature of the universe, present in some form everywhere.
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- Why it matters now. As AI grows more capable, the question of what has an inner life is no longer just philosophy.
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Who named "the hard problem of consciousness"?
David Chalmers. Chalmers framed it in 1995.
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