Comment by capnrefsmmat

9 days ago

The first sentence is a reference to prior research work that has found those productivity gains, not a summary of the experiment conducted in this paper.

In that case it should not be stated as a fact, it should then be something like the following.

While prior research found significant productivity gains, we find that AI use is not delivering significant efficiency gains on average while also impairing conceptual understanding, code reading, and debugging abilities.