We only use 10% of our brains.
“‘It turns out that we use virtually every part of the brain, and that [most of] the brain is active almost all the time,’ says neurologist Barry Gordon at Johns Hopkins School of Medicine in Baltimore. ‘Let’s put it this way: the brain represents three percent of the body’s weight and uses 20 percent of the body’s energy.” -Scientific American.
Yes. That's because we don't need to. Any new action or sight will be remembered. But if you see it daily you won't.
But that's not the myth. The myth is that we only use 10% and if we somehow could use 100%, we'd all be a genius, get super powers, and whatnot.
We use all of our brain but parts are used more and others less depending on the particular action.
Probably because they play with a lot of friends in a time when the cold goes around. And if even one has it...
Correlation is not causation.