There’s not much distinction between currency and product is there? Most products are just other forms of currency - eg, goods can be sold back for money. Services usually save you time. So when you say product, you just mean what is time exhanged for?
The most common product of time is probably money, the next most ubiquitous type of currency. But then there are also more abstract things like enjoyment, knowledge, rest.
There’s not much distinction between currency and product is there? Most products are just other forms of currency - eg, goods can be sold back for money. Services usually save you time. So when you say product, you just mean what is time exhanged for?
The most common product of time is probably money, the next most ubiquitous type of currency. But then there are also more abstract things like enjoyment, knowledge, rest.