Couldn't these variables (situation. location, time, etc.) be considered variables of absolute value?
Man, the more I think, the clearer I see that trying to answer the question of absolute or relative value is like trying to answer the question of destiny or free will: both can be.
Yes, you were only getting answers about who "money is value" and "value is money". In the end (most) economists cannot answer this question because it goes beyond the short mathematical horizons of their craft... it is political, which is to say, it's about
power. Some economists believe money embodies labor and can be objectively measured, some yearn to have the old association of money with some shinny metal back and define everything else's value in relation to that, some believe value is entirety subjective, some plot funny graphics about alleged "use value" and say their scrawling can explain everything, some ... you get the idea.
Money is, and has always been since early settled civilization, more than a simple means of trade. Property, value and money are different aspects of one and the same thing: power. It can be provided as compensation to buy other people's support, those people can be used to coerce other people's will, etc.
And because anything that relates to the workings of power is deeply polemic, you simply cannot get any kind of authoritative answer. You can only search the alternative theories and figure out your own. Or simply pick and endorse one, as any good citizen is supposed to do.
I guess I should give some kind of useful recommendation. There are lots of "
schools of thought" among economists (which should say something about how political the subject is). If you can find the time read the better known works by Marx, Veblen, Hayek, Samuelson and Galbraith, just for an overview of the most interesting ones (my opinion, of course, and I can't claim to have yet managed to decently understand even this small group). Then add Foucault and a few other sociologists you like, for a non-economic look at the workings of power.
But in the end, frankly, all this ends up working as a smokescreen, creating the idea that the subject is too hard to understand and best left alone. I don't want to reinforce that idea - if any conclusion can be drawn from this lack of agreement, it is that people who try to make you believe in the "solutions" offered by some particular "school" without even arguing or explaining anything are not to be trusted.
By the way, about economics: Friedman is junk, don't waste your time with that school.
(But don't just trust my word for it.

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