Too much speculation. For example, the `Doers` might opt for retail jobs where they work as cashiers. Exact ratios such as 1/3 are also confusing, for example a

Too much speculation. For example, the `Doers` might opt for retail jobs where they work as cashiers. Exact ratios such as 1/3 are also confusing, for example an automated packing robot could replace 4 people in a specific job, but those folks might another equally menial but nevertheless tricky work out of reach for machines. It is not clear that if I automate an menial jobs, I won't be able to find another menial job for that person. I think we will see overall productivity increase, but I don't expect a drastic change in the ratio of `implementers` and `do-ers`.