Starlink sats orbit at around 550 km altitude; other services are over 35,000 km high. That's 2 ms for a transmission to make it up (or down) versus 120 ms. Multiply by four to get the theoretical minimum ping, not including any computation/processing or routing on the ground, and the difference becomes enormous.
Makes you wonder if this could eventually lead to Datacenters in space, say for financial or latency sensitive applications, and the kinds of exotic architectures that would be needed for 17,000 MPH servers to shuffle traffic around.
