Another very good way I found to keep track of (lots of) material is to use scientific archiving…
Mauvais Genre
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I didn’t know that app, it looks similar to Evernote but with wider options! Do you use the search on multiple search engines at once? I’m especially intrigued by that one! The shrinking memory is definitely a reality for me too, although I like to think that it can still be active (the memory) just oriented on different topics. But it definitely needs to be a conscious and active choice, the muscle can easily shrink! Thanks again for Papers rec!