Elon Musk yesterday is touting his brand new Grok 4 AI. But I'm using his commonly found Grok 3 AI.

My question:

Is it likely that alien spacecraft have visited Earth?

Grok 3 reply:

"The likelihood of alien spacecraft visiting Earth is low based on available evidence. No confirmed physical proof—like artifacts, wreckage, or verifiable sightings—exists. Most UFO/UAP reports are explained by natural phenomena, human technology, or optical illusions. For example, declassified U.S. military footage, like the 2020 Pentagon UAP videos, shows objects with unusual motion, but experts suggest these could be advanced drones, atmospheric effects, or camera artifacts. The vast distances between stars, even at light speed, make interstellar travel challenging; Proxima Centauri, the closest star, is 4.24 light-years away, requiring immense energy and time."

 

https://grok.com/

I have the answer right here, just look at this and...

 

 

All right, Beatrice, there was no alien. The flash of light you saw in the sky was not a UFO.  Swamp gas from a weather balloon was trapped in a thermal pocket and reflected the light from Venus.

 

 

 

Grok seems to have got it about right, for me. Possible we are being visited by aliens, but the probability is low.

 

 

On 7/11/2025 at 2:04 AM, Fielder said:

No confirmed physical proof—like artifacts, wreckage, or verifiable sightings—exists.

How does Grok define "confirmed" and "verifiable"? 

The devil's in the details. 

Confirmed by whom? Verified how?

I suspect it may involve some sort of scientific concensus, which is hard to define, and almost impossible to obtain for a phenomenon that won't sit still (ie - transient, impossible to predict, and/or slippery) 

Getting scientific concensus is like Lucy and the football...... you can always move the goal posts if you don't like the conclusions. 

Maybe ask it about edge cases where an an explanation or conclusion could not be found, but the evidence is compelling. 

DB

Kneel before Grok !  🙂

Courtesy of Perplexity:

Prompt:

Can you describe some UFO cases where an an explanation or conclusion could not be found, but the evidence is compelling.

Several **UFO cases remain unexplained despite compelling evidence**, often involving multiple credible witnesses, physical effects, and official investigations that failed to yield conventional explanations. Here are some of the most notable examples:

- **Japanese Airlines Flight 1628 (Anchorage, Alaska, 1986):**
  - A Japanese Boeing 747 cargo plane was followed for nearly an hour by unidentified objects over Alaska. The crew saw two objects illuminate the cabin and then a much larger disc-shaped craft followed the plane, tracked by ground radar. The incident involved data reviewed by the FBI and CIA, marking the first radar recording of a UFO. No satisfactory explanation was ever provided, and officials denied the meeting ever took place[11].

- **Chicago O'Hare International Airport (2006):**
  - Close to a dozen United Airlines employees, including pilots and supervisors, witnessed a metallic saucer-shaped craft hovering over the airport. The object shot straight up, leaving a visible hole in the clouds. The FAA initially denied knowledge, but recordings were uncovered via a Freedom of Information Act request. Official explanations such as weather phenomena or airport lights were contradicted by the conditions at the time, and no proper investigation was conducted[11].

- **Alderney UFO Sighting (UK, 2007):**
  - Captain Ray Bowyer and passengers saw two large, bright, cigar-shaped objects while flying near Alderney. The objects were confirmed on radar and by another pilot. The British Civil Aviation Authority was informed immediately, and numerous ground witnesses corroborated the sighting. The incident remains unexplained despite extensive documentation and official attention[11].

- **The Belgian UFO Wave (1989–1990):**
  - Thousands of people, including police and military personnel, saw large triangular UFOs. On March 30, 1990, Belgian Air Force F-16s attempted to intercept the objects, which performed maneuvers beyond known aircraft capabilities, including rapid acceleration and altitude changes. The Belgian Air Force admitted it could not identify the phenomena, which remain unexplained to this day[11].

- **Cash-Landrum Incident (Texas, 1980):**
  - Three people encountered a diamond-shaped object surrounded by helicopters. The craft emitted intense heat, causing physical burns and health effects consistent with radiation exposure, confirmed by medical professionals. Despite a lawsuit and official attention, no explanation was found, and the case remains mysterious[11].

- **Rendlesham Forest Incident (UK, 1980):**
  - U.S. Air Force personnel at a British base observed a glowing metallic object moving at high speed. Investigators found triangular impressions in the ground and elevated radiation levels at the site. Senior officers accused governments of a cover-up, and the incident is still debated, with no definitive explanation[11].

- **Mexican Military UFO Video (2004):**
  - Mexican Air Force pilots captured infrared footage of multiple flying objects with no visible means of propulsion. The objects maintained a tight formation, ruling out conventional aircraft or natural phenomena like ball lightning. The incident was verified as authentic by the military, and no credible explanation has been established[9].

These cases are considered **compelling** due to the quality of witnesses (pilots, military, law enforcement), physical evidence (radar, radiation, ground traces), and the inability of official investigations to provide conventional explanations. While none conclusively prove extraterrestrial involvement, they remain among the most **unexplained and well-documented UFO encounters** on record.

Grok: "What musical instrument did Benjamin Franklin invent?

Grok 3: "Benjamin Franklin invented the glass harmonica (also known as the glass armonica) in 1761. This instrument produces sound through a series of tuned glass bowls or goblets that are played by rubbing the rims with moistened fingers or using a treadle mechanism. The glass harmonica creates an ethereal, haunting tone and was popular in Europe during the 18th century, even inspiring composers like Mozart and Beethoven to write music for it. However, its use declined due to concerns about its sound affecting mental health and the practical challenges of maintaining the fragile glass components."