I wonder if, in time, we will observe that the we have bred for the ability to develop and use tools. That would be consistent with your observations, but perhaps not not your postulate. Our tools have become more and more sophisticated, and we have become better and better at using them, as the species has progressed over the last several thousand years. Those who use tools better become safer and more attractive for breeding partners. Tools have always had danger involved with them too, from the physical danger of using a sharp tool to skin an animal, to the health dangers of the sedentary lifestyle inherent in using many of today's more sophisticated tools. Those who use the tools best while staying safe and healthy become the bellwethers for the next generation. Over thousands of years, we find that as a species we use better and more sophisticated tools (the question is whether we are inherently physically and mentally better suited to using them; I don't know the answer to that, but I suspect we are). Evolution, or coincidence? Dunno.


:)