One of the cool things about learning is that you can do it without even realizing it. You don't have to have your nose pressed into a book, studying intently and filling out work sheets to do it, even though school has kind of conditioned us to think so.
No, learning can happen completely accidentally, as amateur and professional scientists and artists alike share on social media all the time. Just check out some of the weird and interesting things people have noticed out in the world.