Consuming gives you the illusion of understanding. I make those concepts my own by producing something. A blog post, a slide deck, an illustration helps me to contextualize what I learned. Consuming and producing is like four blind men trying to grasp what an elephant is. Each has his model of the elephant, which is not a comprehensive picture. I share whatever I produced with others and seek their feedback. I triangulate my opinion. With the comments given by others, I can make a complete picture, at least closer to it.