I love this kind of thinking. I've always wondered even further about this - how you take this and extend it to 3 dimensions + time. In terms of maps, that wo

I love this kind of thinking. I've always wondered even further about this - how you take this and extend it to 3 dimensions + time. In terms of maps, that would also help you with elevation or other obstacles that might slow you down from a straight line path. Certainly, with the processing power and capacity today, we have the capability of knowing not only the two dimensional direction and the time it takes, but even the three dimensional position plus time. I like to think of this crazy idea like a 3-D video recorder (maybe)... something that records positions of all objects in the specified space in slices of time, and can reconstruct any such slice and analyze the relative position of objects in space over time to each other. I am not sure how such a technology would be made... capturing all the positions of everything in slices of time. I think we can do it with 3-D simulations, but not sure how we could record such data for the real world without modeling it in the virtual. Still, this is such a cool direction and I for one like seeing people experimenting with something that we take for granted so easily, the map. I feel like everything that is amazing about time and space is somehow embodied by maps - astronomy, time, geography, relativity, etc.