Going Japan reminds me of coming to the U.S. from Bangladesh. It’s so clean, so orderly, so disciplined. I’m in a grumpy mood for weeks when I get back to the U.S. Our major cities are such dumps in comparison to Tokyo or Kyoto.

The human brain is one of the most powerful filtering devices that exists. If you train it not to see something, that something can effectively disappear for you. Families, cults, and even societies quite often work on this premise.

We are also limited by the linguistic structures we inhabit. And many languages have multiple variants. There is the respectful, obedient "formal" variant used at the workplace and the informal "colloquial" used in other places.