Speaking as an old guy who saw Star Wars in the theater, it looked like that in 1977 as well. Not because of aliasing problems, but because they hit the resolution of the 35mm film and transfer process.
It looks fine on a Retina MBP. The farthest text gets a little tiny bit of flickering maybe, but it looks sharp all the way until it fades out. Nothing like that.
The flickering is what kaoD referred to with discretely changing aliasing. It shouldn't happen, ideally. Small pixels make it a little less jarring but still noticeable.
