The question as to whether we are alone has been asked by humans almost since they first crawled out of the cave! For millennia we used to ask the priests, philosophers or shaman- whoever we thought was wise- how to answer that question. They always came back with a belief system. What makes SETI different today is that instead of the verb ‘to believe’ we’re trying to use the verb ‘to explore’. We want to see what’s actually out there instead of just believing what someone tells us is out there.