Does Technology improve productivity?

No.

“Productivity isn’t everything, but, in the long run, it is almost everything. A country’s ability to improve its standard of living over time depends almost entirely on its ability to raise its output per worker.”  Paul Krugman

This is why I think that Paul Krugman is wrong, despite his Nobel prize.  People value human contact and personalisation more than economists do:

Productivity is rubbish. Inefficiency rules. Why Craft Gin is better than United Airlines.