A diploma is a ticket for a ship from a bygone age—and it is depreciating fast.You feel cheated, don't you? You're not alone. I was, too.Your parents, your teachers, the experts holding forth from every stage—together they sold you an industrial-age contract: study hard, earn the credential, land a respectable job, and lifetime security is yours. You believed it. You burned through a thousand late nights for it. You kept every rule. And now—look at what it bought you.