“You’re invisible now, you’ve got no secrets to conceal.” -Bob Dylan

Facebook CEO Mark Zuckerberg has a knack for making statements that are at once sweeping and silly, but he outdoes himself with this one:

You have one identity … Having two identities for yourself is an example of a lack of integrity.

This is, at the obvious level, a clever and cynical ploy to recast the debate about Facebook’s ongoing efforts to chip away at its members’ privacy safeguards. Facebook, Zuckerberg implies, isn’t compromising your privacy by selling personal data to corporations; it is making you a better person. By forcing you, through its imposition of what it calls “radical transparency,” to have “one identity,” it is also imposing integrity on you. We should all be grateful that we have Zuck to act as our personal character trainer, I guess.

Zuckerberg’s self-servingly cavalier attitude toward other people’s privacy has provoked a firestorm of criticism over the last couple of weeks. Whether or not a critical mass of Facebook members actually care enough about online privacy to force Facebook to fundamentally shift its policies remains to be seen. Up to now, as I’ve pointed out in the past, Facebook’s strategy for turning identity into a commodity has consisted of taking two steps forward and then, when confronted with public resistance, apologizing profusely before taking one step back. I suspect that’s what will happen again – and again, and again.

But that’s not the subject of this post. Zuckerberg’s “one identity” proclamation reminded me of something I heard Jaron Lanier say in a recent lecture. He was talking about the way that Facebook, and other social networking sites, serves as a permanent public record of our lives. That’s great in a lot of ways – it gives us new ways to express ourselves, socialize, cement and maintain friendships. But there’s a dark side, too. Lanier pointed to the example of Bob Dylan. After growing up, as Robert Zimmerman, in Hibbing, Minnesota, Dylan shucked off his youthful identity, like a caterpillar in a chrysalis, and turned himself into the mysterious young troubador Bob Dylan in New York City. It was a great act of self-reinvention, a necessary first step in a career of enormous artistic achievement. Indeed, it’s impossible to imagine the kid Zimmerman becoming the artist Dylan without that clean break from the past, without, as Zuckerberg would see it, the exercise of a profound lack of “integrity.”

Imagine, Lanier said, a young Zimmerman trying to turn himself into Dylan today. Forget it. He would be trailing his online identity – his “one identity” – all the way from Hibbing to Manhattan. “There’s that goofy Zimmerman kid from Minnesota,” would be the recurring word on the street in Greenwich Village. The caterpillar Zimmerman, locked into his early identity by myriad indelible photos, messages, profiles, friends, and “likes” plastered across the Web, would remain the caterpillar Zimmerman. Forever.

More insidious than Facebook’s data lock-in is its identity lock-in. The invisibility that Dylan describes at the end of “Like a Rolling Stone,” where you’re free of your secrets, of your past life, is a necessary precondition for personal reinvention. As Robert Zimmerman traveled from Hibbing to New York, he first became invisible – and then he became Bob Dylan. In the future, such acts of transformation may well become impossible. Facebook saddles the young with what Zuckerberg calls “one identity.” You can never escape your past. The frontier of invisibility is replaced by the cage of transparency.