Some Brain Facts Contains ~100,000,000,000 neuronsContains ~100,000,000,000 neurons Hippocampus CA3 region contains ~3,000,000 neuronsHippocampus CA3 region contains ~3,000,000 neurons Each neuron is connected to ~10,000 other neuronsEach neuron is connected to ~10,000 other neurons ~ (10 15 )(10 15 ) connections!~ (10 15 )(10 15 ) connections.
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