可引用的發言段落Citable transcript turn
#287708
講者：Speaker:
I think 20 plus 40 is usually what has always worked best. 20 minutes is like TED Talk range. People’s attention span is probably going to...If you do 30 and you don’t give them a way to influence what the moderator will ask, because it’s all pre scripted anyway, people start to lose interest.