https://wired.jp/2011/04/05/%E6%88%90%E5%8A%9F%E3%81%AE%E7%90%86%E7%94%B1%E3%81%AF%E3%80%81%E6%89%8D%E8%83%BD%E3%82%88%E3%82%8A%E3%80%8C%E6%84%8F%E5%BF%97%E5%8A%9B%E3%80%8D%EF%BC%9A%E7%A0%94%E7%A9%B6%E7%B5%90%E6%9E%9C/?fbclid=IwAR1pYreUqCqYxowNtvnQE1Y7j2t5hA4z3Z-hVrDZn5nDMLMHQm_yc6tzt4U