On the other hand, chickens will get old, machinery will depreciate, and 30 eggs will be laid this month. Will there be 30 eggs next month? The capacity of this machine will only go down, and the interest is still 10 eggs. On the day when the chicken doesn't lay eggs, the profit is not enough to buy a new chicken, and it is also a failure in the long run.
The third is risk. What if the chicken runs away and dies? If you don't produce, what about 10 eggs? It's like borrowing money to buy stocks and dying.