cander2020 was held online.
I was very disappointed because I had originally planned to go to Okinawa.
However,it was convenient to join online conference.
They asked me many questions about my presentation (compared to face-to-face).
In the case it is difficult to communicate in conversation, we also used chat tool and it is one of advantages of online conference.
Besides, we could use slack in parallel, so there were no obstacles to communicating in candar 2020.