So I had a dream I was in between towns in an IRL dream verson of ARK. I was at a railroad crossing and I had wanted to light up the area. I was using the cement foundation of the crossing as a work bench to make a desk lamp because in my dream a desk lamp gave the best light and it could be seen across the map like a beacon drop or an obelisk. Oh, and I was making a purple outlet plug thing. I figure this was a future version of ark where there were far more variety of things to build. In this dream there was a train whistle and so I had to pick of the stuff I was building and move aside for the approaching train. And the train was carrying loads of metal ore and was powered by wood and coal. It was a most awesome sight. There was a network of tracks and switches and you could drive right up to a metal harvest-able rock and mine it, then drive to the next one. The tracks didn't prevent plants, trees, or metal rocks from re-spawning. They only prevented normal rocks from re-spawning near them.
Anyway, it would be fun if there were trains and minecarts in ARK. Just because.