We are at the very beginning of time for the human race. It is not unreasonable that we grapple with problems. But there are tens of thousands of years in the future. Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.
Most often the music does end up in the movie, and sometimes there's a point where I wish that it wasn't, just because I think the score would be more effective if there was less of it. But, again, that's not my call.
Like most things that happen with Sabbath, it happened all of a sudden. I was intending on doing some recording, but out of the blue, Sharon called up and said she wanted us to do these gigs with Ozzy. I said that if everybody else was up to it then I would love to do it.