An interesting point from the very end of the DO forum: video content in public spaces (esp. interactive content) has to work at an emotional level both for a single person and for groups of people --
from two to ten to a thousand. I'm not sure I can elucidate this except to say that the master communicators in history have all been able to do both: that is, address a crowd so that each person
feels he or she is being addressed personally, but with an effect that is communal -- that diffuse but powerful group feeling that transforms a public gathering into an event.