Peter Attia synthesizes podcast notes onto 5x8 cards to capture high-yield information.

“I take out these 5x8 cards I have and I then reset synthesize everything from my prep and the notes that I took during the podcast onto 5 by8 cards here the goal is to really minimize the cards because I want the cards to be the highest yield thing imaginable that 6 months or 6 years from now I would go back to and that captures the Salient essence of what I learned and in particular it's always with an eye towards something that I didn't know before or something that maybe I knew but didn't realize how important it was and obviously I'm always looking for something that's going to change my mind or change my practice”