How do we know we are intelligent? Our intelligence is based on comparison to other life forms on this planet such as dogs, fish, birds etc.. What if our smartest person - who knows who that is but lets just use Stephen Hawking as an example - was 10000X dumber (lack of better word) than their dumbest person.

WalrusLike, I totally agree with your comments. Who knows how ET's will be. They could be hostile and ravage us for who knows what purpose. This will always be speculation, fun to talk about, but speculation.

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