Not unless your ears can tolerate bands like Need New Body. And most people's can't. Even people who claim to be music dweebs.
need new body are not even that inaccessible. i book a hell of a lot more challenging bands than them. in fact, some of their material is pretty damn catchy. NNB have plenty of disparate influences and combine them in a way that is fresh. whether it's your style or not, it is hard to question their musical ability.
xavier/rhett, you do have a valid point in that the majority of people don't want to be challenged or confronted and really do just want to be comforted with the familiar. after being involved in the avant-garde/extreme music scene for years, both attending and promoting shows, i have come to realize that most of this stuff, despite how beautiful or transcendent i find it, is simply not appealing to most people weaned on pop/rock convention. i don't expect the masses to appreciate free jazz, abrasive noise, or bludgeoning sludge-metal. on the other hand, i don't understand why artists like jack rose and laura cantrell aren't selling out the 9:30 club and DAR.
aside from debating what does and does not appeal to the masses, what isn't debateable is that there are no new sounds and textures and forms being created. i guess if you want to be truly accurate, you can say that the frontier of alien sounds was reached when stockhausen and xenakis and their peers in the '50s discovered and pioneered electronic music. the use of extreme volume has already been explored by blue cheer, motorhead, and every death metal band. still, invention is possible by mixing all sorts of instruments, lyrics, rhythms, melodies, and styles, and the possibilities are endless.
this argument may pertain to pop, but music encompasses such a wide range of cultures and approaches, that it is ignorant to say that there is nowhere to go from here. i find great music from the 1800s, the 1920s, the 2000s, and every year in between, and we don't even know 99% of what's out there.