If you're not having fun, you're not learning. There's a pleasure in finding things out.

The spark is the engine

There's something we've mostly gotten wrong about learning—we treat it like medicine. Something bitter that's good for us, something we have to choke down before the reward arrives later. But Feynman noticed something simpler: the best learning feels good in the moment. Not because it's easy, but because curiosity itself is genuinely pleasurable.

Think about the last time you fell down a rabbit hole on something that interested you. You weren't checking it off a list. Your brain was lit up. That sensation—that spark when a piece clicks into place or when you stumble onto something you didn't know existed—that's not a side effect of learning. It's the engine. When learning stops feeling like that, it usually means you've lost the thread of what made you curious in the first place.

This matters because it flips how we approach the things we want to get better at. Instead of forcing ourselves through drudgery, the real skill might be recovering that sense of play. Finding the angle that actually intrigues you, rather than the one you think you should care about. The pleasure isn't frivolous—it's the signal that something real is happening.