You only need to bust your train of thought into two shorter trains.I am not entirely sure what you mean by “million year history.” If the form of the ax is irrelevant, then so be it. It’s then nothing more than a widget – a fictional product used to examine economic ideas. But to examine it in a specific point in time is a bit puzzling. I might entertain the consideration of the widgets use, utility, or value from any specific point in time; from the point of its production to the point of its full consumption (when the widget/ax is no longer able to serve any function). But to do so over a million year span? This I am curious to see elaborated.
The first sentence refers to the long human history of using an ax before it was ever offered up as a commodity.
Your second and third sentences are fucking great and betray an almost innate grasp of this stuff right outta the gate.
As a commodity at the point of exchange, the ax is not being USED as an ax. It's not exactly a fiction. I think vessel is perhaps a good subsitution. It is the carrier of value, its value in the marketplace.
As for your contemplation of time, that is all very good once the ax has fallen out of the market and resumed its place as a USE VALUE, one that will eventually be consumed as you very rightly note.
He just confused you by making his reference to time without sufficient detail for you to see where he was coming from. Absent that confusion, you are doing Great
edit - its/it's :(