“…Online-only meetings have a number of advantages, for instance: (i) enhanced accessibility by allowing attendance during periods of fieldwork or teaching (Bartlett et al, 2021), (ii) reduced carbon footprint (Burtscher et al, 2020; Tao et al, 2021), and (iii) lower participation costs with potentially reduced registration fees and no travel and accommodation costs. These advantages have greatly improved inclusivity for researchers and students from developing countries and with limited financial means (Chou and Camerlink, 2021; Wu et al, 2022) and were the reasons why a large online international conference on photonics was held just before the COVID-19 pandemic (Reshef et al, 2020). Thanks to these advantages, many online conferences showed higher registration rates compared to previous in-person meetings (e.g., Castelvecchi, 2020; Stefanoudis et al, 2021).…”