Conversation

Most likely: some sort of spoofing tech designed to create fake radar/visual signatures using projections (40%) Second most likely: weird natural phenomenon (30%) Third: Actual secret Russian/Chinese tech (29.999%) Fourth: Aliens (0.001%)
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Others have put it “extraordinary claims require extraordinary investigations.” Typically, 5% of sightings can’t be explained despite expert witnesses and abundant data. We spend billions so that SETI can listen to the dial tone of the universe. Why not listen closer?
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Another approach is: Given the Drake equation (widely accepted), why is it outrageous to hypothesize that a civilization a mere million years older than humans could have physics knowledge we couldn’t dream of?