Surely your router only requires Selective Data based upon what it can need within drawing distance. A constant streaming of efficient use of data. Like I say, it already has all of the System data ready. It does not need to load all that data you can not see on screen. It is very possible.
I thought we were here to discuss this game so why mention trolling? Isn't that posting stupid comments rather being constructive? Guys open up before the ego takes over please.
You mean like minecraft loads chunks at a time around the player. Because that works so seamlessly in minecraft where the things its loading are mostly blocks that don't move and certainly don't shoot lasers or orbit other bodies....
You'd also require a constant stream, at the moment you can play the game using a phone internet connection in solo and send a few packets at a time. With this it would be constantly updating to see who's around you and what they are doing so anyone with a capped internet is toast after 2 hours play.
It already loads local areas in supercruise to a certain extent, only loading planet graphics when you are close enough etc (Which is why some appear as white dots if you look closely from a distance). But It
does not load all the system data when you enter it a system. It only loads the data of whoever is in supercruise and where the orbital bodies are, it doesn't look at who is in the stations/RES sites etc. So initial loading would be significantly longer.
As I say its possible but would require major re-design and I think it would kill the game for all those not running top of the line pc's and internet connections.
Edit: One thing I forgot is that the server cost for running this would probably jump by about 10,000% since at the moment they can run all instances separately with packet data meaning one server can control many many systems, with the entire system as a fluid instance depending on how much you can see they'd have to have a single server per system.
One thing that would be possible is to minimise loading time by having it background load all stations within say 10Mm so it loads as you approach not as you press the supercruise drop button. Like Skyrim loads ahead of the characters walking direction. Wouldn't be seamless but would have a 1 sec load screen time instead of 5 seconds. The obvious downside is that everytime you pass a USS or SSS or Station your wasting internet and energy loading it if you don't enter it.
Final Edit: Yes its a great idea, yes it would be amazing if it could be done. But no It can't be done easily, and no it's probably not the best thing for Elite in it's current online and instancing format.