So smartphones? I thinking looking at this from the point of view of a single product category is too simplistic and likely inaccurate. A better way of looking

So smartphones? I thinking looking at this from the point of view of a single product category is too simplistic and likely inaccurate. A better way of looking at this may be "one new ecosystem of jobs is replacing another". If you look at it this way, it's possible that the new ecosystem is just as big in terms of number of jobs. I think a bigger problem may be that the pace of change is accelerating and people used to sticking to a job for a decade or longer may find themselves having to do more drastic career changes every few years.