Why read books? Why go to theatrical plays? Why attend conferences? – these questions might be silly, but I think there’s a common answer to all of them.
The answer? Even if you can read a book summary, read at your own pace (perhaps faster) a theatrical play, and not attend a long conference, if you do things like these, you might notice things tend to stick.
It’s one thing to quickly go through an article or to have it explained in detail at a conference.