John A 
FYI for anyone who uses Dropbox, this perhaps has appeared in your settings and defaulted to "on". You'll probably want to turn it off.
David Nash@jrallsn I don’t use Dropbox, but if I did, unless “AI” improves the speed at which I (a) put files into the sync folder, (b) yoink files out of the sync folder, or (c) select various menu options and things like that, I don’t see how it could possibly allow me to work faster in Dropbox.