My Antarctic expedition is just about doable, just feasible and that's what is exciting to me. If I knew it was possible, if I knew I could do it without too much bother, I wouldn't be interested.
Strangely enough, through all those school years I decided at 13 or 14 I was going to be a musician and so school was just something to get out of the way, a waste of time and not to bother with it.
I've developed a theory that there's an inverse relationship between money and imagination. That if you've got lots of imagination then you don't really need much money, and if you've got lots of money then you won't bother with much imagination.