Is it true that humans only have use of around 20% of their brain? If we did unlock the rest of our brains full

Is it true that humans only have use of around 20% of their brain? If we did unlock the rest of our brains full capacity would it be like the film Lucy in which we develop many new skills and the ability to control things like technological devices?

Posted on June 23, 2015 by in Question. Comments Off on Is it true that humans only have use of around 20% of their brain? If we did unlock the rest of our brains full