So although the web has changed out of all recognition in two decades, our underlying metaphor for it probably hasn’t changed that much. And this has the downside that we’re effectively blind to what is actually happening, which is that we are moving from a world of sites and visits to one that is increasingly dominated by streams. The guy who articulates this best is a Yale computer scientist named David Gelernter.
The title of his latest essay on the subject – “The End of the Web, Search, and Computer as We Know It” – conveys the basic idea. “The space-based web we currently have will gradually be replaced by a time-based worldstream,” he writes. “This lifestream — a heterogeneous, content-searchable, real-time messaging stream — arrived in the form of blog posts and RSS feeds, Twitter and other chatstreams and Facebook walls and timelines. Its structure represented a shift beyond the ‘flatland known as the desktop’ (where our interfaces ignored the temporal dimension) towards streams, which flow and can therefore serve as a representation of time.