It <SlaughterHouse 5> doesn’t tell us how to get to the planet Tralfamadore, but it does tell us how to communicate with its inhabitants. All we have to do is build something big, like the Pyramids or the Great Wall of China. Maybe the wall that some individual whom I will not name is planning to build between the United States and Mexico will be read as an urgent message on Tralfamadore. The person who wants to build the wall will not know what the message means, of course. He is a pawn, being manipulated by a power greater than his to send the message in this time of great emergency.
I hope the message reads, “Help.”
salmon rushdie
https://www.newyorker.com/books/page-turner/what-kurt-vonneguts-slaughterhouse-five-tells-us-now