Because it is accessing petabytes of world data. In the old days, you’d store the world on your PC and they had relatively insane storage requirement. Now it’s just too much. The current MSFS has 300GB of content, but you can download areas of world data on your hard drive to cut down on streaming data in areas you go to often. So a lot people have a 500GB+ drive just for MSFS. This new one is supposed to require much less space.
And with 12 terabytes on a 250 dollar hard drive, why do I care about 500 gigabytes?
If they’re using petabytes of data for flyover territory then they’ve already lost their goddamn minds.
It’s just using Bing Maps data, which is smart. Not everyone flies at 35,000 feet, low altitude flights look spectacular and are accurate in a way no stored world map could. The terrain is automatically generated from Bing data, not hand modeled. Every building is in the right spot, is the right height, and the exact right shape, and it costs me no storage. It’s an obvious evolution of the genre with all kinds of benefits. Like all airports on earth, even grass landing strips, that are visible in Bing Maps, exist in the game without having to be hand modeled or stored locally. It detects them automatically then plops down an in game runway, tarmac, and taxiways on top of the satellite imagery in the exact shape and size as the real thing. It’s really cool!
But they can pack that down and create regions. That doesn’t need to be at super high definition for the entire globe.
