>'Harder' is all about the tools at hand. If you have the right tools, everything is easy. >So to me this is all semantics. To me all the wikipedia page basically says is 'we haven't invented >a good artificial tool for generalized, fast perception'

Ok I'll rephrase. "After 30+ years of intense research it has hard to develop the tools to generalised fast perception". Whereas in that time we have developed tools that make higher level reasoning computationally cheap in comparison. But as you yourself say that's just semantics.

If you try to do something for over 30 years and make little progress, compared to another area of activity were many of the hard problems are solved in just a few years and the solutions to harder problems keep on coming, that's pretty good evidence that the first problem area is a hard one, however you try to finesse the description of the problems.