"What am I? Am I the bulb that carries the light, or am I the light of which the bulb is a vehicle?"

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The most complex object in the known universe: brain, only uses 20 watts of power. It would require a nuclear power plant to energize a computer the size of a city block to mimic your brain, and your brain does it with just 20 watts. So if someone calls you a dim bulb, that's a compliment.

— Michio Kaku