Eleven-year-olds, they're all sitting in a little semi-circle looking up at me with big eyes, and I started, there was a white board behind me, and I started off by writing a one with 22 zeroes after it, and I said, "All right, now look, this is the number of stars in the visible universe, and this number is so big there's not even a name for it."
Elleve årige, siddende i en lille halvcirkel, der kigger op på mig med store øjne. Der var en tavle, og jeg skrev et et-tal med 22 nuller bagefter og sagde: "Okay, ser her, det her er det antal stjerner i det synlige univers, og tallet er så stort at der ikke engang er et navn for det."