Now imagine you run a mowing service with 4 employees. Suddenly an unbounded number of people appear on the job market who are ready to work for your company at a 5% the cost of your previous employees. Best of all, they become more competent and less expensive over time. You can't yet fire your entire original roster all at once since they need to teach the new hires the specifics of the job, but after that's done, what do you need them for?