Read something and apply it as quickly as possible. Whether that's doing a problem set, working on a project, solving a real-world problem, making a decision, teaching someone else, or just advancing to the next section in your reference. Keep the feedback loop as short as possible.
Surveying the whole landscape by asking yourself: why this, not that? This is the single most powerful technique I know to reach deep understanding, but is very demanding to apply.
Surveying the whole landscape by asking yourself: why this, not that? This is the single most powerful technique I know to reach deep understanding, but is very demanding to apply.