We’ve all heard the phrase “correlation doesn’t equal causation,” but what does it really mean? It’s a bit of a tongue-twister, but once you understand it, you’ll start spotting its truth in everything from daily news to your favorite conspiracy theories.

I remember what it was like being a student after the fall of the Berlin Wall, the collapse of Communism, the release of Nelson Mandela, and the ignominious end of Apartheid.

‘I’ve got a book out,’ says me hopefully, my hands twisted on the keyboard.

If an African leader stood up at a meeting of European investors and declared that his country’s agricultural success could be attributed to traditional muthi, he would be regarded with an embarrassed sigh.