An activity that has genuinely boosted my general knowledge over the past couple of years is taking part in a weekly pub quiz with a group of close friends. We usually head down to a neighbourhood venue every Thursday evening, pay a small entry fee, and spend a couple of hours competing against other local teams across six or seven rounds of trivia.
The range of topics covered is vast. In any single evening, we might get asked about world geography, twentieth-century political history, classic literature, or even obscure scientific breakthroughs. Just last week, for instance, there was a question about the capital city of a small island nation in the Pacific, followed immediately by one about who invented the printing press. Because the questions touch upon so many disciplines, it really forces you to step outside your usual comfort zone.
I find it exceptionally helpful for several reasons. Firstly, it relies on active recall rather than passive reading. When you are sitting around a table debating whether an answer is correct, you become emotionally invested, which makes the facts stick in your memory much better. If we get a question wrong, I almost always look up the backstory on the way home because of the sheer curiosity it triggers.
On top of that, it is a shared social experience. My teammates have completely different backgrounds, one is a chemist, another works in finance, so we constantly share snippets of insight and learn from each other. Ultimately, it turns learning into something genuinely entertaining rather than a dry academic chore, which keeps me coming back every single week.