I get the sense that the problem he's got is either just the disproportionate scale and/or the idea that asteroids can be meaningful terrain in space. I tend to agree with the idea that the scale is wrong, but in reality the speeds are all relative, right? I mean how fast does the IIS orbit the earth? Suddenly the 30,000km average distance between asteroids isn't so vast. I'm generally willing to overlook things like this in a game. Weirder for me is seeing 3D space depicted in 2D. Sure, most things orbit on a plane, but there is still above and below the plane, no?