This is a cool effect. A neat premise of being able to change the past with a practical, powerful
gimmick.
I really, really enjoyed it. The first time I watched this, I didn't know what to
think; it's a very interesting effect.
After wrapping my head around it though, you really
realize how much you like it. Incredibly practical, very clever, and pretty easy to do. Oh, and my
favorite part is the versatility of the thing. You can use this for street, close-up and even
parlour. This is a really powerful piece of theatre and I reccomend it.