Fantastic essay by Steven Johnson on the value of keeping text/information linkable:
Ecologists talk about the “productivity” of an ecosystem, which is a measure of how effectively the ecosystem converts the energy and nutrients coming into the system into biological growth. A productive ecosystem, like a rainforest, sustains more life per unit of energy than an unproductive ecosystem, like a desert. We need a comparable yardstick for information systems, a measure of a system’s ability to extract value from a given unit of information. Call it, in this example: textual productivity. By creating fluid networks of words, by creating those digital-age commonplaces, we increase the textual productivity of the system.
…
The reason the web works as wonderfully as it does is because the medium leads us, sometimes against our will, into common places, not glass boxes. It’s our job—as journalists, as educators, as publishers, as software developers, and maybe most importantly, as readers—to keep those connections alive.