Nobel Prize winning economist William Nordhaus has written a paper called 'Are We Approaching an Economic Singularity? Information Technology and the Future of Economic Growth'. NBER here and 2021 published paper.
He discusses various tests of whether the singularity - a large trend break in economic growth - is near. He argues that the tests suggest that the singularity is not near, i.e. not before 2100. I would be interested to hear what people think about whether this is a good test of AI timeline predictions.