I'm not sure this follows. There's plenty of business that are sustainable with flat growth. Especially utilities once they reach market saturation. Just as a

I'm not sure this follows. There's plenty of business that are sustainable with flat growth. Especially utilities once they reach market saturation. Just as a quick example, the supermarket down the street from me is neither expanding their market or entering a new line of business. There is no risk of a Walmart opening next door given the location. They just seem to be doing just fine selling the groceries people need each week. Yes, sometimes market conditions change, and the companies need to react. Maybe people prefer buying avocados instead of carrots this season, and they need to adjust their stock. But outside that, there's no need for them to radically expand to stay sustainable.