Lower latency internet backbone for cross continental links. Latency around the world via satellite is less than via optical fiber, since speed of light in fibe

Lower latency internet backbone for cross continental links. Latency around the world via satellite is less than via optical fiber, since speed of light in fiber is much less than in a vacuum. For AWS, it's a huge selling point for many customers if they can offer lower global latencies than anyone else! Think of all the algorithmic traders, the canonical example.