"So, what does the blue box mean?"

I am stumped. I have just told PJ that, on second viewing, Mulholland Drive makes sense. Apparently, not falling asleep halfway through really helps. And realizing that the first 90 minutes was meant to be a pilot for a TV series, and the final 30 minutes are just David Lynch making up some stuff to pad it out into a feature film and give some sense of "resolution." But the blue box? And the caveman hiding in the garbage behind Winkie's on Sunset Blvd? And the dwarf in the room with the microphone? Not a clue.

Damn you, David Lynch!