I'm not arguing with you, but is there any documentation of SF's predictive signaling and synchronization and how it's the best?

I don’t have any, unfortunately. This is just anecdotal from driving around.

and for a long time you could drive on Great Highway at 35MPH and hit green at every single light. Always enjoyed that except that I would have preferred 50MPH

It should be illegal to drive above 25mph on any street that pedestrians regularly cross (i.e. all urban non-highway roads). Your enjoyment of speeding does not supersede other people’s right to not get struck by a car going 50mph.