carla: Thanks Skepsis, I had forgotten this tradition after their annual reject Jesus memorial. Must be a senior moment?
No, it's not like the Memorial when everyone dress up. It's just another talk. I guess it used to have some importance in the past but not today.
Most of the attendants at the Memorial who are not witnesses don't attend this special talk which is one of the reasons why it's called "special" as this talk is also printed on the invitations to the Memorial and is in some way related to it.