What if you can use more of your brain?

then you do 40% better in school? 40% better choices?

Actually, 10% voluntarily is more believable than just 10%. The other 90% is absorbed in the outside world and trying to fix this problem and that problem and coming up with this solution and that solution and we have become 90% robot.

Using 50% of our brains voluntarily would mean that this earth would have to be 40% larger and supply the nutrients. But then, we would eventually be back to the same thing because we tend to be consuming creatures.

It's a myth that human beings only use 10% of the brain. That may be true at any one time, but over the course of your average day you use a lot more.

Now if you're asking what would happen if we were conscious of more of what our brain does, we would probably function a lot worse. The calculation involved in recognizing and running away from a lion is incredibly complex, and if we were aware of and able to question every one of the millions of decisions involved, we'd probably get eaten. So evolution weeded out those who were conscious of things like that.

So, no telekinesis. Bummer.

Were not sure yet but nice to know that this isnt are limit just yet.

That's a myth, we use most of it.