Next year the London Interdisciplinary School (LIS) will offer one degree, in design, technology and the humanities, to teach students to solve ‘complex problems’ like (they suggest) knife crime. Really? The key to problem solving is the development of two essential faculties — the imaginative and the critical. Can LIS really teach for those — or just how to pass exams?

The philosopher Seneca insisted that the search for what really counted (his example was virtue) ‘cannot be delegated to someone else’.