It may not always be as efficient as a computer, but the human brain has a spectacular storage capacity. Consider this -- the human brain contains billions of neurons, and each neuron forms about 1,000 connections with other neurons. That’s trillions of connections. But we’re not talking about one memory per neuron. Data is shared exponentially throughout the neural network, so the brain’s capacity is closer to 2.5 petabytes -- which would be similar to a DVR that could store three million hours of TV shows. In other words, you’d have to leave the TV on for 300 years to use up all that storage capacity.
Memories of a lifetime: