our truly quirky dimensions are never really grasped by these recommendation algorithms. They have all the dullness of a Demographics 101 curriculum; they sketch our personalities with the crudity of crime-scene chalk-outlines. They’re not wrong about us; but they’re woefully incomplete.

The metaphor suggests precisely what to do: If you want to have wilder, curiouser thoughts, you have to avoid the industrial monocropping of big-tech feeds. You want an intellectual forest, overgrown with mushrooms and towering weeds and a massive dead log where a family of raccoons has taken up residence.

For me, it’s meant slowly — over the last few years — building up a big, rangy collection of RSS feeds, that let me check up on hundreds of electic blogs and publications and people. (I use Feedly.) I’ve also started using Fraidycat, a niftily quixotic feed-reader that lets you sort sources into buckets by “how often should I check this source”, which is a cool heuristic; some people/sites you want to check every day, and others, twice a year.

Other times I spend an hour or two simply prospecting — I pick a subject almost at random, then check to see if there’s a hobbyist or interest-group discussion-board devoted to it. (There usually is, running on free warez like phpBB). Then I’ll just trawl through the forum, to find out what does this community care about?

Here are the adoption curves for a handful of major technologies in the United States. There are big differences in the speeds at which these technologies were absorbed. Landline telephones took about 86 years to hit 80% adoption.Flush toilets took 96 years to hit 80% adoption.Refrigerators took about 25 years.Microwaves took 17 years.Smartphones took just 12 years.Why these wide differences in adoption speed? Conformability with existing infrastructure. Flush toilets required the build-out of water and sewage utility systems. They also meant adding a new room to the house—the bathroom—and running new water and sewage lines underneath and throughout the house. That’s a lot of systems to line up. By contrast, refrigerators replaced iceboxes, and could fit into existing kitchens without much work. Microwaves could sit on a countertop. Smartphones could slip into your pocket.