A few questions for the Devs mainly but really anybody.

I originally thought that online exclusive games are created with antipiracy in mind. However now I was also thinking that the world is massive and to support such world it takes so many calculations that only a powerful cluster server can sustain. Is this true?

On the same subject I am also interested if the world eg planetary system exist in a grey 3D form with the planets and such being real objects in a space. Or is there some trick to it and we don actually go from point A to point B in a linear form? Or does the crater from a planet exist when I drop out of hyperspace?