I don't know which world it is and don't think that doesn't annoy me, but I know that I've just come across a girl I knew when she was six, and she's now in her twenties. I know that I've met a human bloke who tells me there's some sort of television show about me on the BBC. I know that my sixth incarnation is here, and for some reason it's not breaking the First Law of Time.
I've got two hearts. I can tell. I arrived in Las Vegas when I got here, and I think they both skipped when I realised I was still me.