London = exhausted heart.
City spaces are oiled with a vast amount of life blood to the extent of exhaustion.New possibilities of extension are required to these utilised spaces.

Water versus Air
Water = The proximity to the Thames allowed London to emerge as a metropolis. Shipping and dock industries allowed cultural/ social/ commercial exchange. Where should London be going next?

Air = Advances in technology, the speed and efficiency of air transport suggest the next step in the transport industry, hence the airports should be looked at as new urban focal points to build an additional layer.