ll these baby-boomer musicians are out there, and no one's leaving the stage. We're able to stick around because there's this big bulge of 52-year-olds in the population. People are still sort of interested in Joni Mitchell and Bob Dylan and me. But it's only because there's so many of us. Until we start to die off, there's going to be this giant cloud hanging over the rest of the population. Newsweek will start running articles like, ";Is Sex Necessary?"; and ";Death, The Next Step."; I don't know whether artists are going to have 40-year careers in this field habitually. Attention spans are much shorter now.