[Cyph0n]

I don’t follow. Why are you assuming LA to NY?

If you’re in LA and want to play against someone in NY, your example makes sense, but it would be technically infeasible even without Stadia, so...

However, if you’re talking about local split-screen through Stadia, what does the RTT to NY have to do with anything?

Google/Stadia would definitely have a dedicated West coast datacenter, if not one in LA itself.

Let’s say the nearest local DC is in SF. 600 km from SF to LA converts to ~10 ms RTT.

Assuming you have a good local connection, you should be able to get ~15 ms max response time playing splitscreen against your friend at home. That sounds very reasonable to me.