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.
Hi, The official number of neurons in the brain range between 10 and 100 billion neuron. Let's suppose, for argument's sake, every human being has precisely 100 billion neurons. The average number of connections for each neuron is about 10.000.