We listen, but we don’t send. Why do we expect aliens to transmit if we don’t? Many have voiced concerns about any programs designed to broadcast our presence — afterall, they may not be friendly. Although it may be a popular idea in science fiction, what do scientists say about this scenario? Today we explore the arguments for and against messaging, and what it might imply about the type of civilization that chooses to engage in messaging…
Written and presented by Prof David Kipping. Special thanks to Erik Wernquist for giving us permission to use a clip from his beautiful \.
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