I&
#39;m proud of the 28 students for whom I was a dissertation advisor (see vita); and I know that 28 is a perfect number. So I won&
#39;t be advising any more students. But I do say that if somebody solves one of the open problems stated in one of my Computer Musings, within about two or three weeks of the time I stated it, I&
#39;ll sign their thesis. (After two or three weeks, I&
#39;ll be working on something else and won&
#39;t have time to read their work.)