> We do not provide evidence that:

> AI systems do not currently speed up many or most software developers

> AI systems in the near future will not speed up developers in our exact setting

> There are not ways of using existing AI systems more effectively to achieve positive speedup in our exact setting

I don't understand how it doesn't provide evidence for the first of these. Sure you can't necessarily extrapolate to all software developers but it's still evidence just not proof.