Conversations with GROK

BigUn

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Big’un@Big_un

April 02, 2025

Conversations with GROK

Me;

It is my contention that the Neanderthal species of Hominid was driven to the brink of extinction by the super volcano under the bay of Naples.
Its eruption was around the same time Neanderthals disappear from Europe. The only area of Europe not devastated by the eruption, was the area of Iberia where the last remnants of Neanderthals were found.
Can you find any evidence for this hypothesis?

GROK;

Your hypothesis suggests that the super volcano under the Bay of Naples, specifically the Campanian Ignimbrite (CI) eruption from the Campi Flegrei caldera around 40,000 years ago, drove Neanderthals to the brink of extinction, with Iberia being the only region spared from its devastating effects, thus hosting the last Neanderthal populations. Let’s explore the evidence and scientific perspectives related to this idea.
The Campanian Ignimbrite eruption, dated to approximately 39,850 ± 140 years ago (based on Ar/Ar dating), was a massive volcanic event, registering a 7 on the Volcanic Explosivity Index. It ejected an estimated 150-200 cubic kilometers of magma and released significant amounts of sulfur dioxide into the stratosphere, potentially causing widespread climatic disruption. This timing aligns closely with the final decline of Neanderthals in Europe, who are generally thought to have disappeared around 40,000 years ago, with some populations possibly persisting slightly later.
Some researchers have indeed proposed a link between this eruption and Neanderthal extinction. For instance, a 2010 study by Golovanova and Doronichev suggested that the CI eruption, combined with a smaller eruption in the Caucasus, triggered a “volcanic winter” that devastated Neanderthal ecological niches. They pointed to evidence from Mezmaiskaya Cave in Russia, where sediment layers post-eruption show reduced pollen (indicating a cooler, drier climate) and an absence of Neanderthal remains above the ash layer, implying a sharp population collapse. This supports the idea that the eruption could have had catastrophic regional effects.
Your contention that Iberia was spared from the eruption’s devastation is an intriguing angle. Studies of ash dispersal patterns indicate that the heaviest fallout from the CI eruption spread eastward, affecting Eastern Europe, Asia, and parts of the Mediterranean more severely than Western Europe. Benjamin Black’s 2015 climate modeling, for example, found that the most intense cooling—up to 6°C—occurred in Eastern Europe and Asia, while Western Europe, including Iberia, experienced a milder drop of 2-4°C. This suggests that Iberia might have been less impacted by the volcanic fallout and subsequent climate shift, potentially offering a refuge for Neanderthals.
Evidence from Iberian Neanderthal sites supports the idea of late survival. Sites like Gorham’s Cave in Gibraltar show Neanderthal presence as late as 28,000-30,000 years ago, though these dates are debated due to reliance on artifact associations rather than direct fossil dating. More robust dating from other Iberian sites, such as Cueva Bajondillo, places transitional industries (possibly linked to Neanderthals) at around 43,000-40,800 years ago, with modern humans arriving south of the Ebro River by 37,500 years ago. This “Ebro Frontier” hypothesis posits that the Ebro River acted as a barrier, delaying modern human expansion into Iberia and allowing Neanderthals to persist longer there.
However, there are challenges to your hypothesis. Many scientists argue that the CI eruption’s climatic impact was not severe or prolonged enough to cause a species-wide extinction. Black’s study concluded that the cooling sidestepped key Neanderthal holdouts in Western Europe, suggesting competition with modern humans—already present in Europe by 40,000 years ago—was a more significant factor. Archaeological evidence also shows Neanderthal decline began before the eruption, with their range shrinking as modern humans advanced. Additionally, a 2021 recalibration dates Neanderthal extinction to 40,700 ± 200 years ago, predating the CI eruption slightly, further weakening a direct causal link.
Interestingly, a 2016 study by Costa and colleagues proposed an alternative: the eruption might have delayed Neanderthal decline by disrupting modern human westward expansion, giving Neanderthals a temporary reprieve in Western Europe, including Iberia. This aligns with your idea of Iberia as a last bastion, though not necessarily because it was uniquely spared devastation.
In summary, there’s evidence supporting parts of your hypothesis: the CI eruption’s timing aligns with Neanderthal decline, its effects were less severe in Western Europe (including Iberia), and Neanderthals did persist longest in Iberia. However, the consensus leans toward a multifactorial extinction—climate change, competition with modern humans, and possibly volcanic effects—rather than the eruption alone driving them to the brink. The idea that Iberia was a refuge due to minimal volcanic impact is plausible and finds some backing in ash dispersal and climate models, but it’s not universally accepted as the sole explanation. What do you think about this interplay of factors?

Picture: GROKS image of itself

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Big’un@Big_un

October 11, 2026

Day 21

Of the 2026 Cavalcade

2890 miles

In order to say we ‘completed the west coast’ we had to go a little further south. @The_CINC had a Weight Watcher’s meeting and a place to get another stamp for her NPS Passport book. The Cabrillo National Historic Monument.

We first rode to a Methodist church for my bride’s Weight Watchers meeting.
She’s to attend at least a weigh in, at a meeting location, once a month.
Once she reached her goal weight, her membership became, and will remain free as long as she doesn’t go more than 2lbs over her goal weight.
She was a tad concerned about her weigh in, as we’ve been eating at lots of restaurants.
Although we’ve stuck to the One Meal A Day regimen.
She took her ‘weigh in clothes’ of course.
She’s exactly her goal weight.
We then headed to Point Loma.

Cabrillo NHM is at the top of Point Loma. It’s the location of a landing, by the Spanish explorer Juan Rodríguez Cabrillo. He is the West coast’s equivalent of the Eastern Spanish explorer, Hernando...

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Big’un@Big_un

October 10, 2026

Day 20

Of the 2026 Cavalcade

2736 miles

The beginning of the end.

We reached Dana Point CA, the end of ‘The PCH’ and ‘CA-1’. Which was the point of this Cavalcade. We will now visit San Diego today, and tomorrow we ‘turn left’, by heading to Joshua Tree NP.

Yesterday was a ‘slog’. 4 hours 45 minutes of seat time to travel 132 miles. 2 hours of it was stop and go, with traffic lights. We hit every LA beach. From Malibu to Redondo and Hermosa beaches.
We saw where the beach houses of Malibu are still just burned pilings and stairs to nowhere. There are just a few locations where the houses are being rebuilt, most have ‘For Sale’ signs in front of a drop off to the ocean.
We also got to check off one of our ‘Weird road side attractions’, ‘The Nude Dude Ultimate Challenge’ statue. Also Known As ‘The Naked Surfer’ in Huntington Beach, which is also known as ‘Surf City’.

We arrived at our current hotel around 16:45. We then decided to try ‘Door Dash’. My formerly ...

00:00:43

Big’un@Big_un

October 09, 2026

Day 19

Of the 2026 Cavalcade

2597 miles

We visited the Reagan Presidential Library in Simi.
He was the first President to win, in the first Presidential election, in which we both voted.
We both, of course, voted for him.

@The_CINC was a little miffed that they only mentioned his two children with Nancy. He’d had three children with Jane Wyman.

“Touched By a President”

It was during the second term of Ronald Reagan, that the White House Heliport was refurbished.
Because of this, when the President returned to Washington DC from Andrews AFB, they had to land HMX-1 (Marine 1), at the Pentagon Heliport.
The heliport was on the Washington Ave side of the building, which before 9/11 was a flat area between the highway and the Pentagon. There was a landing pad with a small ‘tower’ that also contained a firetruck and crew.
They would pull the truck out whenever there was a landing.

Washington Ave was shut down by VA State Police, there was Executive Protective Service (uniformed secret service), Secret ...

00:00:32

Big’un@Big_un

March 02, 2022

This is my Darth Vader voice

For you doubters…
😂🤣😂😂🤣

Big’un@Big_un

10 hours ago

Ensconsed in

Joshua Tree NP

Big’un@Big_un

17 hours ago

Day 22

Of the 2026 Cavalcade

2890 miles

We stayed at the hotel yesterday. It was raining all morning, and there were heavy gusts of wind.
I asked GROK for a comprehensive weather report for our ride to Joshua Tree NP. Heavy rain, wind gust up to 50 mph.
GROK basically told me to wait until today.
So we did, of course yesterday, around 12:00 PM, the sun broke through and it was a lovely day.
I was a tad annoyed, we are in a ‘Marriott’ property and I’m a ‘Lifetime Platinum’ member, so I can wait to check out at 16:00.

We walked over to Costco which is behind the hotel, and saved some money on supper. On our way we found an historical marker here in front of the hotel. It’s for a small dilapidated adobe house just behind the hotel. It’s the oldest Adobe house in California, built in 1790.
My love bought some California Rolls Sushi, I bought a tray of Shashimi.

It’s currently 09:20, we are going to load up and leave by 10:30, as our checkin time at Joshua Tree is not until 12:00. we are ...

Big’un@Big_un

October 11, 2026

Gutter Kith

The Scotts have a saying;
“Kith and Kin, Kith is the family you choose, kin is the family you are born with.”

My Gutter friends are like ‘Kith’, they are the friends and family I’ve chosen.

We had supper with new kith, Isabell @IMP85 , and her dear friend Terry.
I did make her mad when I snuck in my card to pay for our supper.

Big’un@Big_un

November 30, 2022

The Day I Retired

Its almost the sixth anniversary...

Some of you may have looked at my photos and thought; what young looking handsome man… He couldn't be old enough to retire …

Thank you Mama

Anyway, I am 60 and I retired at 55 in July of 2017. I was given a retainer for two more months in order to be on call. I couldn’t always get a reliable Internet connection and I can’t take someone’s money for nothing, so I shut that down in Sept 2017…

So you are thinking, what day in July did you retire? I didn’t really retire in July 2017. I quit going to work then…

I retired Thursday, around 1:35 PM, December 15, 2016…

Life was good for @The_CINC and I.

It was shortly before Christmas 2016. Tiny dancer, our surprise baby was a junior in college. We had a 4K sqft house on 7 acres, 40 miles south of Washington DC. It was our second house in 33 yrs of marriage. We had lived there for over 20 yrs. The final house payment was due Nov 10, 2017.

The CINC was at the highest point you can achieve as a civilian Govt Employee without going into the Senior Executive Service. When she was offered SES, the CINC had gotten to the point at which it would have meant more work, more time away from home, for no more money (because of the pay structure) for at least five to seven years. We also knew we wanted to Retire, so it made no sense to invest the time required for an SES position.

She worked for OSD, DOD, WHS (The office that runs the Pentagon, they are the ‘Landlords’) for 34 years. At one point she ran a division that had a yearly budget of $1 Billion.

She would be eligible to retire in April 2017. We really hadn’t decided what we were going to do. My top-secret NSA/DOD clearance was supposed to be coming through anytime. One of my specialties was encrypted secure communications.

I was a subcontractor for IBM and they were paying $50,000 for my vetting. It had been 2 years because I was a traveling consultant that didn’t associate with my neighbors… I was gone all of the time and I couldn’t see any of them from my house anyway..

Once that clearance came through, I could double or triple my salary which wasn’t small in the first place.

Here we were, at the top of our earning potential, few bills, house almost paid for, kids all gone…

Life was good…

Then Thursday, around 1:35 PM, December 15, 2016, happened…

I was in Birmingham AL, working at the US HQ, of a regional US bank that had been acquired by a Spanish bank. I was digitizing and updating their manual and electronic bank and treasury transactions. I had been on this contract for three years. The last 10 months or so I had been mostly remote, working from my lazy boy.

They wanted me to come in for some end of the year meetings and Christmas parties.

I flew in Monday mornings, getting to the office around 10:00 AM. I would work 10 hours Monday, 12-14 Tuesday and Wednesday, 6-8 Thursday and then catch a flight home around 4:00 pm Thursday. I would have 40-45 hours in 4 days by the time I caught my flight home.

I was sitting at my ‘station’, there weren’t really ‘cubes’, just tables with 3-4” dividers that had plugs. It was basically a giant open room, semi closed at each end by meeting rooms. My seat was near the meeting rooms. Behind me to my right was a large opening which led to a spacious elevator lobby.

The bank of elevators were the divider for another large working area. If you really tried, you could easily get 150-200 people in the elevator lobby.

I had just come back from lunch. I was trying to wrap a few things up before heading to the airport. A woman calmly walks behind me and says “Does anybody know first aid?”

I stood up “Excuse me?!?” She pointed to the elevator lobby behind her.

So I walked that way to see what was happening…

I am a trained first responder. I was a police officer at the pentagon and I was a FFX County VA police officer. I am also a trained BSA leader with back country first aid training.

As I entered the elevator lobby I saw an extremely obese man laying partially on his back. A woman by his side rubbing his hand looking concerned. Another man near his feet watching. I looked around, there were about 10 gawkers.

“MA’AM!”

I startled the woman to look at me…

“We have to treat him for shock”

First thing I could think of, get him flat on his back, elevate his feet.

"Go get that footstool"

That gave her something to do and think about.

I looked at the gentleman "Find me something to keep him warm."

I got him on his back. He must have weighed 400 Lbs.

I ripped his shirt open, put my head on his chest.

No Breathing, no heartbeat.

I took his pulse at his carotid artery to make sure.

No, pulse, his face was white, blue lips, his eye lids were partially open, his eyes were already clouding over...

He was already dead.

I looked up for a second...

At least 175-200 people were watching me...

I could hear people sobbing..

Where the hell did they all come from?

So I measured up his sternum, and began compressions..

If you've never really done CPR...

The first time will gross you out. I broke every bone in his chest away from his sternum. It sounded like I was crushing a bag of potato chips.

Another gentleman, kneeling beside me asked "Shouldn't you do the breaths?"

I was doing this for show. I knew he was dead. I have seen and handled many dead bodies. He was already dead, he wasn't coming back.

I looked over at the decedent's face, my compressions were forcing his lunch out of his mouth.

"Turn his head to the side, sweep his mouth, knock yourself out."

About that time a woman came over with an automatic defibrillator.

As I was giving compressions, I talked her through placement of the electrodes. She was so upset, she couldn't read the instructions.

She placed the electrodes, hit the switch, and audible countdown started from 15. When it got to one, it would send the charge.

I kept doing compressions until the Defib audibly said 'CLEAR', at which time, for some reason , I through my arms up like a touchdown. As soon as the cycle was over, I started compressions again.

I was starting to get winded, when I heard the elevators open and EMTs emerged.

one immediately kneeled across from me and took over.

I simply stood up, and walked away.

I didn't want to be there anymore.

I walked back to my station, and packed my stuff.

I was going to the airport.

As luck would have it..

I followed the gurney down to the lobby, one of the EMTs on the guy's chest still giving compressions.

On the drive to the airport, the shakes hit... I can stay extremely calm in the most stressful situations, but it takes a heavy toll later.

After arriving at my gate, I sat down, my cell phone rang. It was my boss from the bank "I just wanted to let you know that the guy didn't make it."

'I know" I said, "I knew that before I left, thanks for letting me know"

I called @The_CINC and told her everything. I then said "I don't want to die in a cube farm. Let's retire"

The Bank, and my employer tried to do some kind of ceremony for me. I told them not to, it was a dumb idea. If he would have lived it would have been a celebration of his life. He died, there was nothing to be proud of.

That was why they gave me the retainer...

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