Smithsonian scientist: I found the 8th wonder of the world in a coffee shop

Irank the humble coffee shop as the eighth wonder of the world. I first realized this some years ago while walking by the other patrons at my neighborhood café, variously chatting, staring raptly at their laptops, or sitting in a morning daze with a cappuccino, as I made my way to the counter where the barista, the only person I knew, gave me a smile.

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