Not to be confused with his father, Robert, who won a Nobel Prize, I think the author represented here is one of those who likes to kid people that he's more clever than he is (you don't come across those types very often ?). For a start, his 'law' is wrong, plain and simply wrong. Nowadays I set aside 3 hours to complete the Listener. Sometimes it takes longer, but 3 times this year it has taken less. Irrespective of the time I have taken to estimate that it will take 3 hours.