Understand any concept by explaining it simply, as if teaching a child.
Choose a concept you want to understand better.
Write the title on a blank page.
Explain the concept in simple words, without jargon.
Imagine you're teaching a 10-year-old child.
Identify parts where you get stuck or use complicated terms.
Return to learning sources and clarify those parts.
Simplify the explanation again until it becomes crystal clear.
Test: can you explain it in 30 seconds without looking at notes?