"We were granted the right to exist by the God of our fathers at the glimmer of the dawn of human civilization nearly 4,000 years ago. For that right, which has been sanctified in Jewish blood from generation to generation, we have paid a price unexampled in the annals of the nations."

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The problem here is that a civilization that is 1,000 light years away doesn't know we exist. They don't know that we have radio telescopes here on Earth because they see Earth as it was 1,000 years ago. Nothing can travel faster than light, so however good their instruments they can't see in affect the future. So there is no particular reason they should be sending us messages at this time.

— Paul Davies