@bythebay, not to me, sorry. I see my time as the most valuable thing I have, but I can’t store it, distribute it, or pass it to you in exchange for something else, except in a symbolic way or a direct way. I can’t literally accumulate a quantity of my own hours and minutes and hand them over to you so that I have less time and you have more time, as I could, for example, with the tomatoes that grow in my back yard.
The symbolic way is the medium of exchange. The time is the thing of value for which exchange is made. When I go to work, I exchange my time for a medium of exchange (money) that I can then spend elsewhere. If I exchange it directly (this for that), it’s barter, and it does not require a medium of exchange. A medium of exchange is a method of storage and delivery, sort of like a battery for value. That’s what those words mean to me.
If I were answering what is our most precious commodity, I would without hesitation say “time.”