This is the new tagline of the Boston oldies station, at least since the new year. There are two problems with this change. First, I happen to like the greatest hits of the '50s and want them back. Second, I was alive in the '80s. Oldies have always been an expressly historical genre, representing pop music that happened before I existed and thus was of interest to me for purely antiquarian reasons. (I mean, it's hard to explain how I was an antiquarian at age six, when I first started listening to the radio, but suffice it to say, I was.) Now, oldies and I have apparently converged. History has fused with the present! What outrage is next? My present will be the present's past? Oldies will represent my personal nostalgia instead of the nostalgia of old people? I WILL BE OLD???