Progo,' Meg asked. 'You memorized the names of all the stars - how many are there?' How many? Great heavens, earthling. I haven't the faintest idea.' But you said your last assignment was to memorize the names of all of them.' I did. All the stars in all the galaxies. And that's a great many.' But how many?' What difference does it make? I know their names. I don't know how many there are. It's their names that matter.