Via Slate: Seeking How the brain hard-wires us to love Google, Twitter, and texting. And why that's dangerous, by Emily Yoffe. "...Actually all our electronic communication devices—e-mail, Facebook feeds, texts, Twitter—are feeding the same drive as our searches. Since we're restless, easily bored creatures, our gadgets give us in abundance qualities the seeking/wanting system finds particularly exciting...If humans are seeking machines, we've now created the perfect machines to allow us to seek endlessly."