How is it that Kid A's opening track, laden with an electronic vocal stuttering "bleh, bluh-bleh bleh bluh" is the most fascinating statement made in rock & roll this year? Because somehow, even when Radiohead blathers and blips nonsense, it's profound. The band's future-perfect musical grammar may be hard to decipher, and the melody is even more subliminal, but the journey traveled with Radiohead reveals them to be not only rock music's greatest adventurers in 2000, but teachers as well.