Interesting point, TBH I had never considered applying the TSP to any more than two dimensions, as it becomes exponentially more difficult with each node added

Interesting point, TBH I had never considered applying the TSP to any more than two dimensions, as it becomes exponentially more difficult with each node added even within the same plane. I'm not even sure if adding more dimensions would make it more difficult or not but You have me thinking on that now, so thank You.