Nothing irks me more than when people call me a Horse Whisperer. Let me say once and for all – I’m not a Horse Whisperer. There are no special gifts or secret magic powers when it comes to training horses. No-one can teach a horse by ‘whispering’ or looking into his eyes. No-one can apply some ‘secret’ process and have horses instantly understand everything forever more.

But the wrath that I awaited did not descend. Instead, my young vis-à-vis merely looked melancholy.

Not such his evening, who with shining face Sweats in the crowded theatre, and squeezed And bored with elbow-points through both his sides, Out scolds the ranting actor on the stage.

The concept of CAGR is similar to the idea of compound interest. It is the average annual growth rate when compounding is taken into account.