Miles Davis,extreme Jazz and the death of Jazz

Miles Davis and Mahavishnu John McLaughlin are the last greats.There is no one on the horizon.

Some say that David Brubeck may have influenced Miles ... can't say, but Brubeck is still alive and kicking. Innovation since Miles: Look at Corea, Passport, Barbieri (sp?), Weather Report (and those are over a decade old) ... I'm sure there are more, but I've been trying to build my collection of older talent first. I'm not a scholar of jazz, but I do study people -- there may be lulls, but there are never ends to innovation. Of course, the appreciation of innovation requires an audience who accepts and appreciates change (that is a constant struggle for me and I both recognize that and strive to embrace it).

The term used to describe the releases over the past 20 years---fuzak----about sums it up. Few and far between are top notch albums but that seems to be the way most music is anyway; a short brilliant period and then lulls.

Ozfly, good observation. Appreciation/absorbtion of innovation does usually seem to lag way behind the work produced by artists who are outside of the mainstream. The (inaccutate) assertion that interesting and challenging music is not being made bears this out. The best releases by the artists listed below may not print in the brain easily, but can deliver big high quality intoxication to the attentive listener:
Tim Berne
Blast
Vincent Courtois
Andrew Cyrille
Jean Derome
Dave Douglas
Gerry Hemingway
Achim Kaufmann
Kollektiv
Jon Lloyd
Massacre (Fred Frith)
Mario Pavone
Ruins
Louis Sclavis
Thinking Plague
Henry Threadgill
Tipographica
Universe Zero
Ken Vandermark
Nils Wogram
X Legged Sally

Like F.Z. said, " It's *#!%[@ to be alive"

check out Evan Parker, a british sax player, part of the 'free improvisation' movement (mostly european) from way back but who has recently matured into a truly innovative (and finally listenable) artist. Look for: Solar Wind, Breaths and Heartbeats, Obliquities, and Drawn Inward.
I would also recommend The Art Ensemble of Chicago's late 60's into early 70's work. This stuff is being rereleased now for a good reason - their stuff is incredibly creative and the musicianship is astounding (I think their bassist is one of the best ever)
And don't forget to wade into the humongous Sun Ra catalog - his sax player, John Gilmore, is one of the greatest ever. He never pursued a solo career (which he could have anytime he chose) because of his loyalty to Sun Ra (RIP) himself.
The best jazz has always been challenging to the status quo. If it sounds 'difficult', that may just mean you need to stretch your mind a little. Somewhere along the line, jazz became background music, makeout music, etc. Fortunately, the abundance of small labels and ease of self-producing CDs is keeping interesting music alive and vital. You just need to seek it out!