Hasta La Ideas

In a post called “What are These Giant Concrete Arrows Across the American Landscape?” we showed you a long-forgotten wayfinding device for early airmail pilots. The entry featured the map below, plotting out the course of the arrows that the pilots could follow to get cross-country:

The map atop this entry reminded us of that. Any guesses as to what it is? It clearly seems to indicate a cross-country and coastal travel pattern, except for the isolated island chain of dots centered in Texas. And you’ve undoubtedly noticed each red dot appears to have some sort of visual perimeter around it.

Still no guesses? Here’s another hint: The map up top is what exists right now, but later this year it will look like this:

And by the end of 2014, it’ll grow into this:

Finally, by the end of 2015, whatever these red dots are will have achieved U.S. dominance, except for a little sliver of Montana:

Okay, maybe it’s unreasonable for us to expect you to be able to guess what these represent:

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