Here the episode comes to an end, because I'm guessing the personal appearance requests aren't exactly gushing in:

No, I don't know what he means. But was the apology just more performance art about performance art? Sources say Letterman was in on the "joke."

If by "great" you mean baffling, unfunny, unnerving, and incomprehensible, yeah. But did Dave know? Back to Wednesday night's interview:

And we should believe him, because if there's anyone who's earned our trust, it's Joaquin Phoenix.