My colleagues and I were working today on revising one of our most successful courses. It’s amazing how quickly stuff begins to look dated, especially if it relates to the Web. Afterwards, I mused about how satisfying it would be to write something that didn’t date, and we fell to wondering what works would pass that test. One of my colleagues had just been to see the centenary production of Beckett’s Waiting for Godot at the Barbican, and said that it struck him as being just as powerful now as it was when it was first performed. So perhaps that is the test of great art — that it never dates.