Scared of death? Sure I am, I'm no hero and I'll probably fight against the dying of the light like anyone else. But ultimately, if I have an ultimately, I'm just damn glad I got to be here. And damn grateful to everyone (and I mean that in absolutely the widest sense) who made it possible.
Sometimes the universe speaks to me. The problem is, I don't always know what it's saying. But on one recent Sunday, it roared in my ear and I got the message loud and clear. Shirley MacLaine would be proud.
All we can realistically do is achieve whatever knowledge is open to us to understand. This might well fall short of the expectations of my more optimistic fellow scientists. I think a little humility is in order.