The logic
Growth in operating profit comes from exactly two places: reinvesting money back into the business, and how productively that money is used once reinvested. Formally:
g = Reinvestment Rate × Return on Capital
Reinvestment Rate is the share of after-tax operating profit (NOPAT) that goes back into CapEx and working capital rather than out the door as cash. Return on Capital (ROC) is how much operating profit that invested capital base actually generates. Multiply the two together and you get the growth rate that behavior is mathematically capable of producing — not a target, a consequence.
This is exactly the check worth running on a company like Nvidia before accepting its current growth rate at face value: near-term growth can run well above what this formula produces off today's numbers, because it's compounding on temporarily extreme margins. That's fine for a few years in a multi-stage model — but the terminal growth rate, the one that runs forever in a DCF's terminal value, has to be bound by a normalized version of this formula, or the model is assuming a company can outgrow the economy indefinitely.
Where this is honest about its limits
This produces the growth rate current reinvestment and returns are capable of sustaining — not a forecast of what will actually happen. A company can grow faster for a while by drawing down cash, raising capital, or riding a temporary margin expansion; it can also underperform this number if execution disappoints. Use it as the sanity check on a growth assumption, not a replacement for one — see the DCF model for where a growth assumption actually gets used.