Why are UFOs still blurry? A conversation with David Brin

In recent years there has been a surge in reported sightings of Unidentified Flying Objects (UFOs). There are perhaps more now than at any time since the 1950s. But there are also many millions more cameras active on the earth than there were in the 1950s, and the cameras are far better, so why are the UFOs still blurry? One man who has some answers is the scientist and science fiction author...

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