It's a terrible analogy really. Poor writing. A gym is only unfamiliar if you've never been to a gym before. Almost any gym you go to has the same machines (ca

It's a terrible analogy really. Poor writing. A gym is only unfamiliar if you've never been to a gym before. Almost any gym you go to has the same machines (cardio and weights), dumbbells, barbells, kettle bells etc. Most machines are understandable on first sight (maybe not good form), and even if somebody has never used one, the average person instinctively know how to use, let's say, a chest press machine because they've seen it in TV shows, movies, real life. You'd have to be almost alien to reach an age that would allow you to have a gym membership without having seen these machines used second-hand. I'm sure Superhuman won't be the first email client somebody uses, so they'll likely pick up most of the features based on intuition. Based on that, the analogy doesn't hold up whether you've been to a gym before or not.