What if...?

I really love the slogan that the Sci-Fi Channel have been using for some time now: 'What if...?'

It goes perfectly with the content of the channel, but the reason I like it is because it is the type of question that I enjoy. A question that open doors, that challenges imagination, that helps creativity flow.

I am just guessing here but I think that this interesting ad from Smirnoff/London may have very well been conceived after a 'what if' moment... What if the sea could purify itself? What would happen? Here is one possible answer: