I'm in my early 20's, grew up watching YouTube, and still find textual documents superior for learning in almost all cases (with the exceptions being concise an

I'm in my early 20's, grew up watching YouTube, and still find textual documents superior for learning in almost all cases (with the exceptions being concise and intrinsically-animated things, like a lot of 3b1b's videos). I don't think that there's nearly as much adaptation as there is just people getting used to watching video content and liking it more. That is, greater enjoyment, but not greater comprehension. I suspect that nearly everyone who thinks that they "learn better from videos" just enjoys the videos more (which affects how well they perceive their own learning efficiency - humans are notoriously bad at self-assessment especially in the cognitive realm) and/or has attention issues that are mitigated by the more engaging nature of a video.