The core user experience is not a set of features; in fact, it is the job users hire the product for. Uber’s core user experience is to get a taxi easily at any time. The countdown, displaying when exactly the taxi will arrive, is a suitable feature that expands this experience. But Uber’s product works regardless of this feature. The countdown, on the other hand, cannot live without the product (the certainty to get a taxi easily at any time). There is a one-way interrelationship between feature and product: Features don’t work without the product. This is why designers should think in products first.

Warren Buffett plays the ukulele. Larry Page played the saxophone growing up. Scores of other entrepreneurs and business leaders have learned an instrument growing up or still play to this day.

There’s no denying the link between playing music and achievement.

Video games have been shown to improve memory, spatial reasoning skills, strategy, and even social skills.

So whether you’re solving complex puzzles, killing waves of zombies in a post-apocalyptic hellscape, or becoming a rich criminal mastermind in San Andreas, just play in moderation!