Are Teslas talking to each other?

[enemji]

There's some really basic physics here.
When you are travelling at 88 feet per second, two vehicles calculating their position only a half second apart is the length of a school bus.

And that's if GPS is accurate to cm. It's not. And those solutions that able it to be take time.

True. Adding more stops in the information process will only lead to more latency, as will adding more sensors.