Books that distribute things... with as daring a freedom as we use in dreams put us on our feet again.
I would go to bed every night and have dreams about having a time machine and...
I do think sometimes there's danger in guest appearance mania. I've seen too many examples that sound cool on paper like 'Oh get that guy to sing the hook on that guy's song ' and then that's all it is. It's a cool idea that sounds good on paper.