One thing that distinguishes human beings from other species, according to human beings anyway, is our use of tools. There are a few other animals that use primitive tools but they are quite limited in number and scope. We, on the other hand, are so damn smart! Not only did we invent shovels, we used them to dig up stuff that could power the shovels so we didn’t have to hurt our feet anymore. We found fossil fuels and ushered in the Age of Oil.


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