In a recent letter to this magazine, Wilfred Jones, a younger, and clearly devout Catholic, describes his and his friends’ doubts about Pope Francis’s approach to Catholic teachings on human sexuality.

Yes, it is messy. Many years ago I suggested that we would be helped by a computer program which, written correctly, would solve any moral choice and even estimate the proper penance for defiance. It may still be valuable for some, but I doubt if Pope Francis would use it. In trying to deduce his direction of travel, I can only speculate.