Curiosity turns out to be a surprisingly effective shortcut through all of this too. Economist and psychologist George Loewenstein proposed what he called the information gap theory, the idea that curiosity kicks in the moment we notice a gap between what we know and what we want to know.
That gap feels uncomfortable enough that our brains actively push us to close it, which is one reason a good question pulls people in far more effectively than a dense textbook chapter ever could. If a subject feels dry, try hunting for the one strange question hiding inside it. Curiosity about space rarely starts with orbital mechanics. It usually starts with something like why the sky is blue or how astronauts manage to sleep while floating.
One more trick is worth borrowing from a Nobel laureate. Physicist Richard Feynman believed that if you could not explain an idea in plain language, you probably did not understand it as well as you thought. The method built around that belief, now known as the Feynman technique, asks you to explain a new concept as though you were teaching it to a curious twelve year old. Wherever your explanation stumbles is exactly where your understanding has a gap worth filling.
None of this makes a subject smaller. The world is still enormous and wonderfully strange, and it always will be. What changes is your approach to it. Break things down, space them out, keep your curiosity switched on, and give yourself credit for every small piece you manage to pick up along the way. That is really all learning ever is anyway, one interesting piece at a time.
