Alone in the Universe: A safe choice?

Open letter to SETI:

There are those within the SETI project who wish to send signals out into space — hoping a reply would make it easier for us to discover life in the universe. I’ve addressed this concept before, however, there are those who fear such an act would invite unwanted visitors from a civilization far more advanced than our own. So the question remains: should we be concerned about distant civilizations looking towards Earth with hungry eyes for our natural resources? Continue reading

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