Does this take relativistic effects into account? The video I mentioned doesn't. Near the speed of light your surrounding looks like sped up and the distance to your target is clinched. Your own time runs slower in comparison and the distance is shorter. So theoretically you're able to reach the destination millions of LY away in your lifetime.
Edit: I now watched the animation. It's exactly the same as the YT video. Speed of light is very, very slow.
Edit: I now watched the animation. It's exactly the same as the YT video. Speed of light is very, very slow.