It's 140' but yeah, you nailed it. Synthesis ability is a good thing. In longer constructs, that is. We don't base our lives on aphorisms alone. Sometimes we really need to be verbose. Sometimes we really need to read "à la recherche du temps perdu".
Twitter is just heading to its natural destination, a place where people share links and headlines and quick comments of little to no value.
All the "revolution instrument" narrative is plain bullshit, too. A high percentage of what you'll have on your timeline is nonsense in no particular order.
Only thing I save: lists. Useful for news gathering, but not much more.