Earth's magnetic field has weakened 35% or so from the Holocene peak. We're now just 6% above the level last seen during the Sahara's desertification (~7ka).The rate of decline most closely resembles the Gothenburg Excursion. However, compared to the historical timeline, we are free-falling. Note that the Gothenburg excursion was coincident with the Pleistocene Extinction, which saw the erasure of many species of megafauna.
>>16882868Nuno L.G. Louriero, the assassinated MIT plasma physicist that has inspired @cirnosad to release his work, realized that Earth's magnetic poles must flip periodically to maintain it's field. The maximum duration that Earth can maintain it's magnetic field without such a flip is only:[math]\tau Ohm - R^2/Xm \approx 10^5 years[/math]https://x.com/Perpetualmaniac/status/2001177401905308152
When Earth's magnetic poles flip, the process isn't instant but unfolds gradually over centuries to thousands of years (1,000 to 10,000 years), with the magnetic field weakening significantly, becoming chaotic with multiple poles, and then re-establishing in the opposite direction, rather than simply shutting down completely. The entire event can involve precursor phases, a transitional period, and a rebound, taking several millennia to fully complete. How long would the period be between the total chaos of machines not working?
>>16882883Unfortunately, this is only partially true. People are taught about the average geomagnetic orientation reversals that occur on average every 450ky, and not about geomagnetic excursions, which unfold over much small time frames on the order of centuries. Their frequency on Earth is once every 12,500 years.Norwegian-Greenland Sea (~66,000 BP and ~54,000 BP) - https://www.sciencedirect.com/science/article/abs/pii/S0012821X09002386Laschamp (~42,000 BP) - https://www.sciencedirect.com/science/article/abs/pii/S0012821X0400562XMono Lake (~33,000 BP) - https://www.sciencedirect.com/science/article/abs/pii/S0277379102002494Lake Mungo (~25,000 BP) - https://royalsocietypublishing.org/doi/10.1098/rsta.1976.0048Gothenburg (~12,375 BP) - https://www.sciencedirect.com/science/article/abs/pii/003358947790031XThe duration of the onset of the Laschamp event to full geomagnetic reversal was only 400 years. Note that we're some 450 years into our current geomagnetic excursion, with it having accelerated drastically in 1900 and again in 1997.Ask yourself why you were never taught about this.
>>16882890Forgot picture.
>>16882890>Ask yourself why you were never taught about this.Because it's a niche subject in an already niche field?
>>16882890Anyway, the key point is that it is not a linear process. It's gradual at first, slowly degrading over a few centuries, until it reaches a tipping point, with the final 50-65% of the move occurring in a matter of months.In another ten years or less, with a weakened to non-existent magnetic field, it won't take much from the Sun to knock out the grid. X5-class flares, like the one on December 31st, 2023, are causing visible low latitude aurora when they would do jack all at low latitudes two or three decades ago.People are already complaining that Starlink is functioning erratically or not working at all in the South America, where the geomagnetic field is weakest, stretching from the South Atlantic Anomaly.
>>16882906Because the NSF suppresses any science or knowledge that says we're fucked. Got to keep the economy functioning so the bunkers for the elite can be built and stocked.
>>16882910Or most likely it's just a niche subject in an already niche field.There is no suppression going on. This shit's on fucking Wikipedia. Other "sky is falling" scenarios like Carrington Event 2.0 and Climate Change are actively shilled across the media and political landscape. Trust and believe there's zero coordinated effort to suppress unlikely catastrophes this geomagnetic excursion event.
>>16882920They're suppressing it now by not acknowledging that its imminent. Ask any accredited geologist with government/military connections, and they'll tell its nothing to worry about, that it's at least tens of thousands of years away and happens only every 450k to 500k years. Then bring up geomagnetic excursions and watch how uncomfortable they become and how quickly they end the conversation. I've tried it.
>>16882925It's in the same vein as a massive asteroid impact. Ask an astronomer about the likelihood and they'll say "none of the major asteroids we have tracked are on a collision course with us" bring up our limited capacity to even detect these things and you'll get a shoulder shrug.Most geomagnetic excursions appear to have been localized phenomena apart from a select handful. We xant know for certain what the events leading up to them would really look like or what the time scale is like so...*shrugs.*
>>16882929>We xant know for certain what the events leading up to them would really look like or what the time scale is like so...
>>16882939First off: that does not address the point that we don't really know if this behavior is consistent with an excursion. We also don't know, even if it were, whether this will be localized or global since most appear to be localized events.And even just looking at your image, I can spot events just as if not more apparently significant than the latest reversal in the historical data.Ofc I'm not saying you're 100% wrong. But there's about as much validity to your concerns as an untracked asteroid smashing into us tomorrow afternoon.
>>16882955The other hooks occurred when the Chandler wobble was still active. There's also a linear artifact from when the observatory was offline for the better part of a year.
Today's update. Polar motion locked onto the LLVSP gravitational meridian. It's not looking good.https://x.com/zachariaspro/status/2007137424124543225
so what if the magnetic poles flip in some weird excursion thing, what would it even change? the direction of a compass?
>>16884498No. It would expose the electrical grid to knock out from regular solar flares, make it dangerous to go out into the Sun without protection (ancient humans covered themselves in red ochre) and cause rapid climate change. Modern civilization would be toast.
>>16884519wouldnt it just go back to normal afterwards?
I don't know anything about the atmosphere. What are the implications of it and the signicance? Are we going to get irradiated by the sun?
>>16882881>The last time a reversal happened? Noah's flood.stopped reading there
>>16882868What even records this in a way that persists through time?
>>16884535Not immediately. It's taken a few centuries to get to where we're at now. It might take a few centuries to go back.>>16884547Yes>>16884612Noah in the Bible is a retelling of the Babylonian/Sumerian Atrahasis Epic. Most ancient cultures have some form of flood myth, which was originally passed down orally. It would seem some actual traumatic event inspired the story.>>16884694>What even records this in a way that persists through time?Sediment deposits, magma deposits, fossilized trees.
>>16885050>Most ancient cultures have some form of flood myth, which was originally passed down orally. It would seem some actual traumatic event inspired the story.Most ancient cultures lived near flood plains. It would seem more likely they independently derived these stories from independent local observations.
>>16885053Most ancient cultures also lived near the coast. The sea level was ~250-400 feet lower 12,000-16,000 years ago.
>>16885060Yeah but that was much too gradual for anyone to notice in real time. At most Grug would have taken note that some trees he grew up knowing were a tad more waterlogged than he remembered.It was a period of hundreds of years.Again, best explanation is that great flood myths were one if many "what if [thing] but bigger?" stories that you see dotted all throughout ancient mythology and even to the modern day.
