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I've just read the article and I'm amused by the two examples of unchanging technology he quotes.
The Plow. - To my mind this invention has come on quite a way since the days of the ox drawn single bladed device. The removal of the ox being a key point closely followed by all the other bits that go into modern plow production.
The Wheel. - Unquestionably a key component to modern living it too has changed. The addition of tires being a very important change. The slight customisation to make cogs and pulleys and the myriad of other uses of the wheel.
So both his examples fail to illustrate his point. I do appreciate the amount of time it must have taken him to carve his article on stone tablets though before submitting it for print.
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