[visarga]

> After spending the better part of a century on that problem, we have made essentially zero progress.

I dunno, I heard music composed with neural nets that is above what the average human could achieve [1]. Not on par with the greatest composers, but over average human level.

In the same line of thought, I have seen models do symbolic math better than automatic solvers, generate paintings better than average humans could paint, even translate better than average second language learners.

I would rate current level in AI at 50% of human intelligence on average, and most of that was accomplished in the recent years.

[1] Google Music Transformer - https://magenta.tensorflow.org/music-transformer