um, no, infinity's focus is not on realism, but on a seemless procedural galaxy on all levels (I.e. fly from star to star, then on a planet, then land on a planet, then get out for a hike, stuff like that, pretty much like good old Elite:Frontier). I saw noone in infinity project ever claim that it will be realistic or physically accurate. I would expect physics in infinity to be somewhere around I-War level, if they ever get it done, that is.