In the evolution of mankind, humans had to survive very tough environments for hundreds of thousands of years.
It can be safely stated that most modern humans would not have a chance of surviving in the prehistoric times. The human brain evolved to survive in this harsh environment. The size of the brain was apparently considerably larger in the human species 300,000 years ago.
Of late, there are plenty of things being automated with computers and robots. As life starts to get easier, some of the functions of the brain like having skills to survive in a harsh environment go away.
It would be interesting to note how the human brain would look in a few hundred years from today.
Going from thought to binary signals in a semiconductor has been one of the most significant achievements of the past century. The process worked this way:
- A vision forms in the head of someone of some end goal
- An algorithm is formulated to achieve this end goal
- Based on the algorithm, code is written in some human computer language, like C
- The code is then converted finally into a series of bits which can run on a semiconductor
Going forward, steps 1-3 is likely going to change from requiring a human agent to being easily performed by a computer with AI.
The promise of AI is that it will let humans focus on leisurely and creative pursuits, while the intelligent computers take care of the essentials of human life.
The point of artificial intelligence seems to be that as humans, we have evolved to such an extent that we can venture into replicating the underlying mechanism which actually powers our intelligence: the brain.