Of course no sane person would spend ten years writing "All work and no play makes Jack a dull boy" over and over again". That wasn't the point.

The labor theory of value says that the value of something is determined by the amount of labor that went into creating it. I'd say it's not really so much a theory as a definition of the word "value" -- and I suggest that it's not a particularly useful definition.

If I go to the widget store to buy a widget, the price I'm willing to pay depends on what it's worth to me. The amount of work that went into producing this widget or that widget doesn't affect my decision.

Another article you might (or might not) want to read: https://en.wikipedia.org/wiki/Criticisms_of_the_labour_theor...

"Get rid of copyright, and the market simply becomes fair."

I think the word "simply" is doing a whole lot of work there.