In long-term valuation practice, the DCF (Discounted Cash Flow) model has always been an indispensable core tool—but it is by no means a simple "number calculator"; rather, it is an "analytical framework" that connects business models, market environments, and investment logic. Most investors limit their understanding to the formula itself, overlooking the deeper investment thinking it embodies, which is precisely the core value of the DCF model. I. The Core of DCF: Moving Beyond Arithmetic to Focus on the Five Dimensions of "Business Essence" The calculation logic of the DCF formula (discounting future cash flows to present value) may seem simple, but behind the parameter settings...