I don’t think that there is a direct reationship between a specific “product” and a specific “currency,” though. Like, what is the product of the dollar? Or the Yen, or Euro? Any product you want. That’s the definition of currency, you can exchange it for any product.
At the risk of being tautological, the product you get in exchange for time is any product you can get in exchange for time. Maybe it’s something you make yourself, or maybe it’s value you derive from waiting for something, or maybe it’s a skill you develop through practice. Maybe it’s the mental or physical health gained from rest. Those are all “products” of time spent.
I don’t think that there is a direct reationship between a specific “product” and a specific “currency,” though. Like, what is the product of the dollar? Or the Yen, or Euro? Any product you want. That’s the definition of currency, you can exchange it for any product.
At the risk of being tautological, the product you get in exchange for time is any product you can get in exchange for time. Maybe it’s something you make yourself, or maybe it’s value you derive from waiting for something, or maybe it’s a skill you develop through practice. Maybe it’s the mental or physical health gained from rest. Those are all “products” of time spent.