After lots of talks I started going to the library and found out it's a lot more effective to grow knowledge. Maybe I'm too ADHD-able when watching videos.
I can read way, way faster than I can listen to a video. Also, reading usually comes with charts and code I can cut and paste. Books are way more effective than videos for me.
I used to believe this. But reading and deep understanding aren't that correlated, so speed is secondary to me. Videos have just less content than books and don't bring a lot compared to textual encodings of ideas. Maybe the context help with a book, you're by yourself, trying to imagine ideas rather than hearing it from someone else (which could cause more "acceptance" rather than understanding).
The good thing is you can do both. Sometimes I like watching or speeding through a talk and then looking for books about it. I'm not necessarily looking to get enlightened or become an expert from a talk but rather I'm seeing a quick pitch for an idea or technology I can later research at length.
Talks are a great way to discover interesting ideas, technologies, concepts etc. And if the talk inspired, one can then later invest in reading a book.
But brief summary type articles are an even faster way of discovering interesting ideas, technologies, concepts, etc... You can skim them and jump around and generally expose yourself to more ideas in the same amount of time.