Traditional lap pools are about 10 feet wide, though widths between 8 and 10 feet are common. (In competition pools, swim lanes are 2.5 meters wide, or about 8.2 feet.) You don't want to go too narrow with a lap pool.
The number of neurons in the brain varies dramatically from species to species. One estimate (published in 1988) puts the human brain at about 100 billion (10 11) neurons and 100 trillion (10 14) synapses.
A typical calculation goes something like this: There are about 100 billion neurons in the human brain. On average each sends outgoing connections to roughly 10,000 other neurons. Calculating the capacity of these connections, or synapses, is assumed to give a sense of the brainâs total capacity.