World's most powerful subwoofer - opinions?

Here's the link

 http://whathifi.com/News/BRISTOL-SHOW-2010-Paradigm-to-unleash-the-worlds-most-powerful-subwoofer/

I think we should take them to court on grounds of false advertisement - surely those PA rigs with several 18" horn loaded subwoofers are more powerful?

Still, I've only got a pair of 8"s, so who am I to judge?

PS - all that cone motion will only make things worse - think of how fast it would have to move going 1" each way, and how difficult it would be to stop, when it gets there.