Yes, I understand that you/others think this is an already solved problem - my point was that as time passes and the world grows, it no longer is - they can’t exactly solve it satisfactorily for all.

I don't think it was ever a "solved and done" problem, but at least Google kept putting tremendous efforts to lead the arms race and bring a decent solution for most people. It wasn't perfect for everyone of course.

I think they could still keep up if it was a priority to them. It's complicated, but they have a lot of the best minds of our generation after all.