6.034 Artificial Intelligence - Recitations, fall 2004 online slides on learning
	Power in Numbers Each neuron is not extremely powerful by itself Neuron switching time is ~ $.001$ second Each message 100,000 times slower than a computer switch 10 billion - 1 trillion neurons Each neuron has 1,000 - 100,000 connections Computational neural networks are inspired by biology, but do not exactly imitate biology