Yup... make it from scratch, or use it in a non trivial project, or try and do some original research with it. All three above will get you asking questions an

Yup... make it from scratch, or use it in a non trivial project, or try and do some original research with it. All three above will get you asking questions and seeing the thing from angles you wouldn’t have thought about otherwise. It’ll also connect your knowledge to existing knowledge which is ultimately what will make it stick around. I spend a LOT of time learning new things . I’m perpetually perplexed and live in a constant state of confusion about a large part of my current thoughts, and the way described above is how I perpetually integrate the new stuff effectively.