Correct. It’s a very straightforward algebraic correction that reflects both supply and demand. The demand is implicit and equal to production. You consumed it

Correct. It’s a very straightforward algebraic correction that reflects both supply and demand. The demand is implicit and equal to production. You consumed it but you didn’t produce it. The demand is internal but the supply is not. This equation is tautologically true. It is not some “almost always wrong” blah blah. People here know almost nothing about economics and are vulnerable to the most specious of arguments.