system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do we not have 'intelligent' AI?

I mean obviously the AI we currently have are smart enough to make simple or even somewhat complex decisions, but they are still incredibly limited.  If human thought is just the programming of our genes and past experiences, shouldn't we have made more progress towards this?  What are the major problems holding us back?
gpt
Here is the underlying misunderstanding that you have.  We all know how smart computers are, and how they are so much smarter than people, right?  Well...kind of, sort of, but not really.

Computers are good at one thing: executing simple commands very fast, and repeatedly.  That's about it.  On the most basic level, all a computer knows is 'on' and 'off'.  But that's not ELI5, so let's not go there.  Point is, a computer itself is not smart.  Through a lot of years of programming and hard work, a lot of smart people have made computers do really cool things...but contrary to what your grandmother tells you, computers don't just act randomly.  They do EXACTLY what you tell them to do and nothing else.

So you want to figure out 10 billion digits of Pi? It would take a human a lifetime to do that, but a computer may be able to do it in minutes. Because it is one small thing done over and over, very quickly.  So is the computer smarter than a person?  Or just better at moving numbers around quickly?

On the other hand, try to have a computer recognize when someone is sad.  Pretty hard to do because how do you define sadness?  Is it a look, a tear, a tremble in a voice, the way someone is moving?  Probably different in different situations.  But an infant could do that..hell, even a dog could.  In that sense, a computer doesn't have the intelligence of a 2 year old.  

To sum things up, computers are completely awesome, but they do not have any intrinsic intelligence; they are just really good number crunchers.  We are still a very long time away from self aware robots.