We cast the message to the cosmos. It is likely to survive a billion years into our future. When our civilization is profoundly altered and the surface of the Earth may be vastly changed. Of the 200 billion stars in the Milky Way galaxy, some — perhaps many — may have inhabited planets and space faring.
For the living know that they shall die: but the dead know not any thing, neither have they any more a reward; for the memory of them is forgotten.Ecclesiastes 9:5 KJV