Why have you been working tirelessly for years running a business, and while the cash flow looks impressive on paper, by the end of the year you realize you haven't actually made much money? Because you simply haven't truly understood the profit logic: gross profit and net profit. The video presents a very real and soul-searching question: Project A: The product is excellent, with a gross profit margin of 50%, but poor management, resulting in a net profit of only 10%. Project B: The product is mediocre, with a gross profit margin of 30%, but aggressive operations, achieving a net profit of 20%.