People who actually read a lot. The ability to absorb information-dense content like this is a skill that comes with practice, just like math, programming, mus

People who actually read a lot. The ability to absorb information-dense content like this is a skill that comes with practice, just like math, programming, music, or anything else. The more you do it, the better you get at it. Learning some speed-reading a few years ago really helped me personally too, the drills they provide help improve concentration and focus. I'm not an expert, but Evelyn Wood's books are a good start imho. https://en.wikipedia.org/wiki/Speed_reading https://en.wikipedia.org/wiki/Speed_reading