Isn't that just splicing the definition of "hard" in "hard work"? Is peeling 100 kg of potatoes actually "harder" than actively practicing an instrument for an

Isn't that just splicing the definition of "hard" in "hard work"? Is peeling 100 kg of potatoes actually "harder" than actively practicing an instrument for an equivalent period of time? I'd argue that practice is harder, because (done right) it's extremely mentally taxing, as well as physically demanding, depending on the instrument. I agree with your main point that the same task will be considered hard by someone who hates it, and easy by someone who loves it.