I think we have to believe in things we don't see. That's really important for all of us, whether it's your religion or Santa Claus, or whatever. That's pretty much what it's about.
Also, if you want to reach people, theatre is not always the best way to do it.
The whole memorial is for different senses... seeing, hearing, feeling, smelling. I probably would have come up with something different if I had not lived through it.

