There's Just The One

I have a theory. Well, it's more than a theory, it's more like a lead-pipe cinch to be fact. I just don't have a valid way of testing it. Yet. But it's one of those things that when you hear it you just know it has to be true.
   A bit of explanation. In one of my prior jobs I used to travel a lot. All over the continental US and then to various foreign parts of the world. So I lived out of suitcases and ate in strange restaurants and lurked in funny-smelling comic books shops in cities and towns and villages far from my home. I also spent a lot of time in airports and had a chance to see where they're different and where they're the same. And they're all pretty much the same, no matter if you're in Honolulu, Savannah, Frankfurt or Fukoka. This is where my theory comes in.
   I'm convinced that there is only one airport. Just one. Everyone all over the world uses the exact same airport no matter where they are. It's just that the airport looks different depending on which door you use to enter it. And you can't see the millions of other people using the One True Airport, only the ones who came in the same door as you.
   It's a multi-verse kind of thing, with a touch of experientialist solipsism thrown in. When you go into the airport in LaGuardia you have to traverse a certain path, travel certain roads to get there. And that path determines what the One True Airport looks like to you when you enter it. Same thing when you go to the airport in Adelaide, Australia, you have to work your way through the local environment to get there. It's kind of like solving the maze on the back of child's placemat in a restaurant; locally there's only way way to get to the One True Airport, and that one way determines how you see everything inside. So when you go to the Leonardo DaVinci Airport outside Rome all the signs look like they're in Italian. But when you go to Gatwick all the signs - which are the exact same signs - read in the Queen's English.
   That TGIF Friday's in DFW? It's the same one in McCarran. Exact same one. The burrito places are the same, the newsstands are the same, even the shoeshine stands are the exact same in each and every airport you're ever going to visit. The details just look different to you.
   You ever wonder why the janitor cleaning the bathroom in O'Hare looks just like the janitor cleaning the bathroom in Brussels? Because they're the exact same guy. It's true.
   Yeah, it's a brain-twister. But anyone who's traveled for a living knows what I'm talking about and they're with me. They get it. Now, if I can just figure out a way to prove myself right...