なぜ日本ではコロナウイルス流行が（それほど）起きていないのか、そしてなぜ東京で増えているか。今から申し上げるのは完全に仮説です。科学的営為は仮説生成と仮説検証からなります。ぜひ検証したい、してほしいと思います。 Here what I state is just a hypothesis. Science consists of hypothesis generation and hypothesis evaluation. This hypothesis also needs evaluation. I would like to do it and somebody also should. I do not have time to write an English version in addition to this Japanese one, so please take advantage of one of translation service to read
