If that's not a proof of the 10/90 rule in machine learning. The last 10% of accuracy are harder than the first 90 (and that goes recursively). We almost solve

If that's not a proof of the 10/90 rule in machine learning. The last 10% of accuracy are harder than the first 90 (and that goes recursively). We almost solved OCR 20 years ago. Then we spent 20 years on the last percentage. We see the same in self-driving cars.