It isn't about note taking, it's about supporting a brain that simply isn't capable of retaining the level of information that we have to deal with. The ultimate note taking device is actually an augmented human brain that has perfect recollection and organisation.
In the mean time the note taking apps help with:
Working memory - a page can hold far more information than I can retain in my working memory. Having a bunch of information helps me build a working model without having to retain all the information while I'm building. Spot patterns - by organising information it's easier to spot patterns.
Long term memory - your brain just isn't very good at retaining information long term. Maybe you have a company wide wiki but the act of building your own notes is enough to form some connections in your brain so that when you come back you have far greater familiarity and insight associated with the information.
In the mean time the note taking apps help with:
Working memory - a page can hold far more information than I can retain in my working memory. Having a bunch of information helps me build a working model without having to retain all the information while I'm building. Spot patterns - by organising information it's easier to spot patterns.
Long term memory - your brain just isn't very good at retaining information long term. Maybe you have a company wide wiki but the act of building your own notes is enough to form some connections in your brain so that when you come back you have far greater familiarity and insight associated with the information.