The talks made by the keynote speakers Prof. Michael Hechter (Arizona state University) and Prof. Mary C. Brinton (Harvard University) at the past edition of the INAS 2021, hosted in Tokyo (Japan) fully online due to the COVID-19 pandemic, are now available online:

In addition, you can watch the Welcoming and Concluding remarks sections of the event made by host Jun Kobayashi and the rest of the organizers of the INAS 2021 edition: