In one millisecond, light moves 200 kilometers through fiber. This means the physical limit of a ping from LA to san fran is about 6 ms. Some of the newer home networks like FIOS are actually getting close to this physical limit (ie, with gigahertz routing hardware, the packets are barely slowed down at network hops).
First. LA is not 700 miles away from New York. Sacramento is 500 miles away from LA roughly. By car it's about 2700 miles, or 4300-4400 kilometers. That's a minimum of 22 ms travel time, not 6.
Did you notice I was talking about LA to san fran?
"The straight line distance between San Francisco and Los Angeles is approximately 346 miles or 557 kilometers" - 2.5ms one way at the speed of light through fiber - double that, round up - 6ms is about the theoretical minimum ping to LA to san fran
And actually you forgot to double it for round trip time - LA to NY across backbone transit right now is about 50ms actual round trip time, close to theoretical. But of course, that doesnt really matter, because they aren't inane enough to try and connect users to servers that far away.
I'm glad you took some classes on networking a while back. As I'm typing this, over a simple 1 mbps DSL connection, I have a 10-15ms ping to backbones and colocations in LA - far worse than physical but my packets are going to irvine 1st to switch backbones. And my ping to some locations in san francisco is 30-50ms. So I guess thats just impossible.
90% of the US population lives within a couple hundred kilometers (not miles) from a major metropolitan network hub.
[snip worthless assumptions]
They announced 7 or 10 data centers in the US (forget exactly), so I dont know why you are talking 900 miles. Read a little before you post.
And god no, they aren't using TCP, and no the decoder does not have to wait 1/30 a second to buffer a full frame of packets before it starts decompressing. Thankfully their engineers took a bunch of networking classes - or didn't need to
And I mention the LA to san fran connection because they demoed it at our company and that was the test connection - not to a server in LA, and
it was smooth. And in reality thats a greater distance than what they are planning.
Impossible Magic? Or maybe a few more networking classes . ..