A few months ago, I was traveling around Japan, and something struck me: Even in the streets of Tokyo — home to more than 37 million people (!!) — everything felt quiet, orderly, clean, and respectful. No honking horns, no blaring music, no one yapping loudly on their phone, no chaos or clutter. The calm was almost tangible. For someone like me, who doesn’t handle crowds or over-stimulation very well,…