Of course he is correct, if you define things the way he does.
By this logic, I can sit in the sun for the next week as its what I want to do its 100% efficient.
Brilliant.
Is it good use of my time? When there is no food in the house, the roof leaks, the washing machine is broken the freezer is on the blink?
Well, if its 100% efficient, it MUST be a good use of my time, right? Coz I chose to do it.
Practically, maybe I should get off my **** and get some food adn fix the roof, the washing machine and the freezer?