supernova,” said Ford as quickly and as clearly as he could, “is a star that explodes at almost half the speed of light and burns with the brightness of a billion suns and then collapses as a superheavy neutron star. It’s a star that burns up other stars, got it? Nothing stands a chance in a supernova.” “I see,” said Arthur. “The…” “So why a whelk particularly?” “Why not a whelk? Doesn’t matter.”