That could work, but only to an extent. Remeber- We don't have full-sized celestial bodies in KSP, so why do the distances have to be the same way? Answer: they already aren't. So what makes this any different? if we make the distances more "Kerbal" this idea could easily work. I don't have time right now to average it all out, but based on the part size "Half- sized" would be a good rough bet. so that 2.98 minutes on page 1 suddenly becomes 1 minute 30 seconds. Easy. that 50 light years? ~15 minutes. Not terrible, again you can still do other stuff while its traveling. We don't have N-body Physics, if multithreading ever gets implemented those 2 systems, the galactic center and all your spacecraft will be an easy job with a little tweaking of the current system. Of course, all this will still take time, but for the dev's sake we aren't suggesting eveything to happen at once. Let's at least finish the current system and career mode, then we can return to this topic.