The Future and Our Brains

Although I never studied the anthropology, the fact that we only use a tiny fraction of our brain, It made me aware. Many have said: A real pity, who knows what we can do if we have it all at 100%? Well basically, in the first place we will never know if in the distant future, humans will know his brain to exploit the full potential. Then, if we succeed, we will not be aware of what could be done. Recall also that the man, guilty of being the most intelligent animal, "has done big damages" to other species, and also to the that planet Earth. Only hope, always looks to the future, if one day the man was able to use all his IQ present in his brain, all of us hope that he does benevolent purposes. In essence, not as more or less have done until today!

i've read some sites in the past that write human brain usage is still debatable. Some scientist believe that human already use most of our brain capacity. Personally i didn't know which one to believe because i didn't understand how those scientist measure the amount of brain capacity that we use.