What should be left alone.....ie: dont try to fix it

I thought it might be good to compile a list of things we dont think should be changed.<br /><br />For instance, I dont see a compelling need to change Void travel. One form of hyper space travel is probably as good as another and just as much a fantasy too. <br /><br />That said, if there are some things that dont get changed it sort of nixxes the complaints from the Negative Nellies that we changed everything and now they hate it. No doubt most N. Nellies will find something to gripe about but I see not trying to change every thing as a bit of a good thing. sort keeps it largely recognizable <br /><br />Some things might need little tweeking but little change too.<br /><br />Your thoughts?<br /><br />