To understand Google’s highly successful business model, we first need to know about the accidental but highly significant discovery the company made in the early noughties, a discovery which transformed it from unprofitable provider of free web searches to ubiquitous corporate verb.
Revealed by retweet or algorithmic fate, these tragedies levitate for a moment in pixels, burn out their short intense lives, before sailing calmly on.
As the battle for Sheffield's trees continues to play out across the city's streets, in its courtrooms, newspapers and online, it seems a good time to ask: in England's greenest city, how did it come to this?