Absolutely brilliant. Besides the social commentary on the art world, it underlines that: beauty is transient and above all -priceless.
Gee I hope not. Some things are better as a mystery. I'm curious how they would exclude anyone that was on their suspect list but by virtue of coincidence just lives in the same area.
The engineer in me is curious how the shredder was activated. Remotely controlled, requiring a person in that auction room to push a button?
CDMA-triggered circuit. Easy with only a 9V battery. Plans are everywhere and commercial units are available. How long has the thing been out of Banksy's possession? How long would the liion batts last before dropping below sufficient voltage to drive the shredder?
Not only that but what about power supply? The history list's 2007 as the date of this work. https://en.wikipedia.org/wiki/Balloon_Girl