90% is a big number. Assuming being an expert allows her to make better use of AI than most, that is still an astonishing number without knowing anything about the field in question. That makes me think that 80 hour work weeks are mostly unproductive. Again, assumption being an average person to be able to use AI less effectively, let's ballpark at half as effectively, I still get 40 hours per week of mostly non-sense work. How did we end up here as a society?!