``` One day a student came to Moon and said: “I understand how to make a better garbage collector. We must keep a reference count of the pointers to each cons.

``` One day a student came to Moon and said: “I understand how to make a better garbage collector. We must keep a reference count of the pointers to each cons.” Moon patiently told the student the following story: “One day a student came to Moon and said: ‘I understand how to make a better garbage collector... ```