Implying watching anything makes you smarter. I've also read and seen so many things, but it's mostly (95%+) gone. The only things I continue to remember are th

Implying watching anything makes you smarter. I've also read and seen so many things, but it's mostly (95%+) gone. The only things I continue to remember are those from where I actively participate(d) in (including in online communities). The collective consumption-heavy posture of online usage can't be healthy... Though I will grant that some latent knowledge might stick regardless. Active curation and note-taking (e.g. in a personal knowledge base or in a private/public wiki) might also help. In fact it's this that I would recommend most to kids these days: record and curate the things you do and see. Not only for nostalgia's sake but also so that you can find (and reshare? ;)) stuff again.