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How long do you estimate until autopilot handles...

I think #1 (traffic lights) won't ever happen as part of AP. It will be part of FSD. Too many tricky intersections out there where even a human is like, uh, which light is for which road? That's going to be dependent on high definition maps coupled with a pretty developed NN.
They probably won't ever have EAP do #1. They will likey leave that for FSD. For #2 they should be able to do that in 3 months maybe, 6 months definitely...
The problem is, they can’t ‘trickle out’ FSD features like AP.
It would be disappointing if the car has the capability to stop at traffic lights, but they withhold the feature for, say, 5 years awaiting for complete FSD capability