There are mountains of eyewitness accounts–which count as circumstantial or indirect evidence. But beyond that, there is also a significant body of sensor evidence from military and civilian systems, including radar tracks, infrared/FLIR footage, and multi-sensor corroborations. These provide stronger circumstantial or indirect evidence than testimony alone, though they still require inference to interpret.
There is no publicly confirmed material evidence (direct evidence)–such as recovered craft, biologics, or exotic materials of non-human origin–that we know of.
That said, whistleblowers claim the government possesses such material (direct) evidence, but those claims remain unverified and are themselves more circumstantial or indirect evidence at this point.
Evidence of what, exactly? That has yet to be determined.
It might be mass misperceptions, psychological phenomena, or expectation bias. It might be advanced human technology (classified or foreign). It might be something metaphysical or spiritual. It might be mass hysteria. Or it might actually be exactly what some witnesses and sensors appear to show. It could even involve something or someone (possibly a non-human intelligence) interacting with or tampering with human perception and technology.
The point is, we just don't know. But that uncertainty doesn't mean we should rush to conclude it is 'nothing.'
The one thing we do know is that something is going on. There wouldn't be this mountain of anecdotal, eyewitness, and sensor-based circumstantial evidence otherwise. Many of the highest-quality cases involve multiple trained observers plus independent sensor data that defy easy explanation–which is precisely why serious scientific and national-security investigation continues.
The question that fascinates me the most is why the Government is being so secretive about the matter.
Is it because what they have managed to capture and observe is so outrageous that they fear the public would panic if they knew that alien life not only exists but has been to earth frequently.
Or is it, they have nothing of alien origin except advanced research the military is working on, and they are trying to confuse and distract our adversaries.
Blurry photos and shaky videos.
"There is no publicly confirmed material evidence (direct evidence)–such as recovered craft, biologics, or exotic materials of non-human origin–that we know of."
No one has provide any physical evidence. We know this.
"whistleblowers claim the government possesses such material"
'Eye-witness testimony'. Claims without physical evidence and hearsay.
"It might be mass misperceptions, psychological phenomena, or expectation bias. It might be advanced human technology (classified or foreign). It might be something metaphysical or spiritual. It might be mass hysteria."
Word-salad mumbo-jumbo.
"The one thing we do know is that something is going on."
If something was going on we'd know it. Nothing is going on.
No one has offered a plausible explanation of why aliens would want to visit Earth. Nor has anyone offered a plausible explanation of how they would overcome the limits on faster than light travel.
Well stated! The only thing we know for certain is that it is not nothing.
Nice summary !!