I'm against the generalization of anecdotal evidence as much as, if not more, than the next guy, but their point about distractions like message alerts is doesn't seem like a controversial stance to me.
That statement is in line with essentially every piece I've ever read over the years on deep work, and I'm not sure why you seem to feel they are only extrapolating from introspection.
That statement is in line with essentially every piece I've ever read over the years on deep work, and I'm not sure why you seem to feel they are only extrapolating from introspection.