In a world where attention is a major scarce resource, information may
be an expensive luxury, for it may turn our attention from what is
important to what is unimportant. We cannnot afford to attend to
information simply because it is there.
-- Herbert Simon "Rationality as process and as a product
of Thought," American Economic Review 68, no.2 (1978): 13.
quoted in Scrolling Forward: Making Sense of Documents in the
Digital Age by David M. Levy, 2001: p112.