NO! Why is it not 20% or 30% but 10%? How can neuroscientist measure, anyway? They hare investigated down to molecular and nanometer level but still can’t see through the brain (in live). Not yet… The brain is too complicated and it would be too early to conclude how many percent of brain is being utilized. There are many electrochemical reactions occur in many cell types, of many complex neural connectivity, at many brain areas, that made up the brain, whereby they all are functionally important for an optimum brain! They (neural and non-neural cells) are in fact working together in many combinations, which lead to various ability of the brain.
However, the brain does have many unknown or unclear, particularly its subjective capability (thinking, emotion, senses, consciousness), and even how the brain actually works still nobody can explain (near) accurately. I agree with we might have known little about the brain, or perhaps we have not known what this sophisticated living computer/machine is! Thus, there is growing interests in brain research using multidisciplinary approaches, in order to seek break-through somewhere, someday!!
