His argument is: 16 hours daily use is not addiction IF THAT IS THE ONLY FACTOR. He repeats it again and again. But that argument is stupid, because it ignores the other well-known and proven variables of addiction. Does this behavior have serious effects on your mental and physical health? Does it interrupt your work and play? Do you have an obsessive need to do it? The list goes on.
Who put this genius in front of a microphone?
I am in construction (not manufacturing) and own my own business. Truth is, they are both right.
Rodney is right because there are a huge number of variables that the prof's equation is ignoring. Also, it is generally a good idea to know what you are manufacturing and work to produce that product as efficiently as possible. The professor is sort of putting the cart before the horse by building a factory with no product.
That said, we are in a learning environment and seemingly in a lower-level class. You have to strip away real-world variables to teach the lessons at hand. The professor is right not to include corrupt politicians and mafia folk, it's too much when you are trying to start with the basics. But he should've had the class decide on a product - he said it himself, it could be anything - and then build up from there.
Mafia payoffs are a 300 level course.