http://healthland.time.com/2012/03/1...impair-memory/
As neuroscientist Mark Changizi put it in a blog post:
" In nature, information comes with a physical address (and often a temporal one), and one can navigate to and from the address. Those raspberry patches we found last year are over the hill and through the woods — and they are still over the hill and through the woods.
And up until the rise of the web, the mechanisms for information storage were largely spatial and could be navigated, thereby tapping into our innate navigation capabilities. Our libraries and books — the real ones, not today’s electronic variety — were supremely navigable."