So, Hoenikker proposed a seed that could be introduced to the water. It would introduce a form of atom stacking that they'll just call ice-nine. The water atoms when matching the form would be solid and have a melting point of, let's say, 130 degrees.
Before the conversation can continue, the Girl Pool arrives singing "O Little Town of Bethlehem."
But they mess up one of the lines—oops—singing: "The hopes and fears of all the years are here with us tonight" (20.14).