Nothing really says ... interactivity - which was so exciting and captures the real, the Web Zeitgeist of 1995 - than 'Click here for a picture of my dog.'

The patterns are simple, but followed together, they make for a whole that is wiser than the sum of its parts. Go for a walk; cultivate hunches; write everything down, but keep your folders messy; embrace serendipity; make generative mistakes; take on multiple hobbies; frequent coffeehouses and other liquid networks; follow the links; let others build on your ideas; borrow, recycle; reinvent. Build a tangled bank.

The economics of television syndication and DVD sales mean that there's a tremendous financial pressure to make programs that can be watched multiple times, revealing new nuances and shadings on the third viewing. Meanwhile, the Web has created a forum for annotation and commentary that allows more complicated shows to prosper, thanks to the fan sites where each episode of shows like 'Lost' or 'Alias' is dissected with an intensity usually reserved for Talmud scholars.

We are strangely biased, as individuals and media institutions, to focus on big sudden changes, whether good or bad - amazing breakthroughs, such as a new gadget that gets released, or catastrophic failures, like a plane crash.

This is how great intellectual breakthroughs usually happen in practice. It is rarely the isolated genius having a eureka moment alone in the lab. Nor is it merely a question of building on precedent, of standing on the shoulders of giants, in Newton's famous phrase. Great breakthroughs are closer to what happens in a flood plain: a dozen separate tributaries converge, and the rising waters lift the genius high enough that he or she can see around the conceptual obstructions of the age.

Most new movements start this way: hundreds or thousands of individuals and groups, working in different fields and different locations, start thinking about change using a common language, without necessarily recognizing those shared values. You just start following your own vector, propelled along by people in your immediate vicinity. And then one day, you look up and realize that all those individual trajectories have turned into a wave.

Some great minds become great by turning the rubble of an exploded paradigm into something consistent and meaningful. Others become great by laying the gunpowder, grain by grain. Every important revolution needs both kinds of minds to complete itself.