Ok, let's talk about tech part. Firstly, we all know that FS2 technology is vastly superior to our current tech. I mean, you don't see a lot of beam and flaks going off in outer space each day eh? Whats even more shocking, is we havn't designed a ship that is capable for space combat. Once we solved that, we still got the problem of fuel. Ahhh....scientists say that within the next 70-100 years fossil fuel will deplete. Imagine what happes when we put in the cruisers and destroyers? I don't think (with the current supply of fuel) that we could make it pass something like a freighter. In FS, I remember they use uranium, obviously, we almost don't use radioactive substances right now at the moment. So how are we going to develop the technology if we don't even use it?
One last thing: the brakes inside outer space. Surely we all know we press 'z' to slow our ships down. But remember in outer space, there is no force to stop us or even slow our ships down. We would be continuing to fly and fly until we hit something physical.