With all the advances in computing power that have enabled NASA and other space agencies to send probes to the most distant regions of the solar system I wonder why we don't have soccer/football teams consisting of robots. All these robots would have to do is kick a ball and defend against another kicker. The robots would have to communicate with eachother with radio transmitters embedded in their heads and devise strategies which could be modified in an instant. It's really not all that complicated. I would enjoy betting on my favorite team. What's the holdup here? There is something about being alive and human that is difficult to reproduce in any machine. Neural networks have had decades to mimic our intelligence. Can we even build robot cockroaches that can avoid getting stomped on? We can build clever bug-like devices that crawl around, but could any of them avoid a heel coming down on it? I haven't seen that demonstrated anywhere. Think of all the millions of dollars that have been spent in this field. I suppose we'll have to wait a few more decades.