A shift to τ, Dr Houston added, would make A-level maths considerably easier, and help to make mathematical concepts such as calculus more intelligible to many more people.What complete and utter nonsense! Various combinations of π appear in many formulas (such as the surface area and volume of the sphere), and other expressions, such as Γ(1/2) would become more complicated. Replacing one constant by an integer multiple of itself will make no significant difference—and I am certain that such a change would not have any impact on making A-level maths easier. Indeed it would likely make things more confusing!
I hope that this was an April Fool's day joke by Houston.