What's everyone doing on their phones all the time?

White sneakers, blue jeans, and a brown sweater. Dirty blonde, shoulder-length hair. Just another anonymous 40-something at a conference of over 1,000 people, most of whom were white women from outside the country's Internet hotspots.

I sat next to her against the back wall for the simple reason that I was late, it was crowded, and the chair was empty. A presenter from Instagram had the room laughing, and leaning in, as she explained how she convinced a bunch of irritable programmers and designers to care about the writing, too.

My unremarkable neighbor was typing on her phone faster than a teenager. For a while I was oblivious. Then impressed -- such diligence. And, inevitably, curious.

I glanced. It was email. I looked again. There it was. In the middle. In Helvetica. "I have some of the traits many Dominators look for in a Submissive."

You just never know, do you?