I used to try services like Blinkist. Did anyone have similar experience as I had: I simply couldn't remember what I read, let alone what I listened to. The summaries, despite being reasonably detailed and having key points and representative examples, were still bland and boring, to the point that they left little impression on me.
This isn't due to Blinkist, but due to how you consume (high information density) content. What you need to do is write the insights you are getting from it down in a way where you will see them again when they are relevant.
Lengthy stuff has lots of repetition and different access routes to the insights and information. Even then the above approach works much better than hoping that the passive consumption will lead to memorization.
