> Please parse that sentence more carefully. I said "labor productivity"

Yes. Unless we’re redefining labour to fit a square peg into a round hole, this remains true.

Access to the latest technology is never a sole determinant of productivity in any technological revolution. If anything, it having any relation to productivity is a modern phenomenon.

(Most kids who had a computer in the 80s or internet in the 90s didn’t become wildly more productive for it. They just found new ways to entertain themselves.)