> constantly intaking information will ruin this synthesization.
I don't find that it does, for me. If I'm chewing on a hard technical problem, then I actually need the surface-level distraction of a podcast or a news article or a ballgame to keep it from dominating my conscious thoughts and let my subconscious get to work.
Where I agree with the author, and you, is that I can't do creative work - mainly writing, now, but back when I did this sort of thing professionally: coming up with approaches to a text, or ideas for sets and costumes, or exercises to get my actors where I wanted them to be - without time spent in "silence".
N=1, and all that, but I'm always intrigued by how different people's brains work, well, differently.