It is believed that there are 100 billion neurons in each human brain. Each memory is a unique sequence of neuronal firings. That offers a wide variety of potential situations in which new memories might be created. When we consider that we are continually optimizing the memories which are most essential, pruning the less important ones frees up neurons to store new information, our capacity for memory quickly grows.The average person’s memory is somewhere around 2.5 petabytes. That’s enough time to watch nonstop 1080p video for nearly 300 years.
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