An ordinary person: periodically changes jobs, and even professions, performs new tasks for themselves. An entrepreneur: probably does the same thing all their life.
As soon as they open their own business, they can no longer think of anything else. And now their goal is to develop the business at all costs.
In fact: a successful entrepreneur does not become a fanatic of their business. They understand that if their idea fails and their product is not in demand, something else will appear. Or their priorities in life will change altogether. A sensible person will not storm a closed door for years, but will try something new. The accumulated experience will help them achieve success in any case.