When Lytle was born, the Wright Brothers had not yet achieved a working design. When he died, Voyager 2 was exiting the solar system. What does one do with the coexistence of those details in a lifetime’s view? It weighed on him.
The justification for rap rock seems to be that if you take really bad rock and put really bad rap over it, the result is somehow good, provided the raps are barked by an overweight white guy with cropped hair and forearm tattoos.