electricity
The Flavour of Cities – My deck from OpenCities
UPDATE: oh and my speaker notes are here on the slideshare page which might explain things a *little* more clearly. A great commentary by Edward on the discussion that followed (thanks!): “At the final session, insulated by a Creemore, it was interesting to think of as flavour as taste: in the look and feel and [...]
How Times Change (1908)
Technology, like any media, moves through society like a wave function. Starting with a ripple before ultimately cresting. [Detail from a larger image. From Shorpy.com, possibly the best website on the internet.]

Thomas Purves
is a technology executive specializing digital payment systems, a futurist and sometimes entrepreneur living in the great city of 
