"...I am a strong believer that our brain is ment to do much more than what we are used to."

It's hard to avoid that conclusion, but what we need to explain is how a brain evolved over a few million years to aid the survival of small roving primate bands has in just a few millenia proven itself capable of handling abstract thought, music, mathematics, hierarchical organizations, collective action and other extremely complex symbolic systems with no precedent in our evolutionary history.

Our brains have shown no sign of any natural limits to what they can do, but this must have all evolved from the evolutionary requirements of the Paleolithic. How did the need to survive on the savanna come to give us the machinery we need to conquer space?

My guess (and its only a guess) is that the capacity for language is the conceptual equipment that has given us the surplus mental processing capacity needed to undertake these other functions. Thought is a by-product of language. Language, complex communications, information processing, i.e., the functions we are just now learning how to automate , are how we are different from the beasts.

When we have our machines to do all our thinking for us, perhaps that evolution will stop.