Prof. Taniguchi’s column was published in the “Gendai no Kotoba” column of the evening edition of the Kyoto Shimbun on September 15, 2021. The title of the column is “Oh, the Time Difference! “. The Corona disaster has made it impossible to travel abroad, and international conferences are now held online. This is thanks to the development of information and communication technology. What we can’t get beyond is …I’m sure many of you can relate to this. I hope you will read this article.