[HN Gopher] Lost islands cited in Welsh folklore and poetry are ...
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       Lost islands cited in Welsh folklore and poetry are plausible
        
       Author : docmechanic
       Score  : 111 points
       Date   : 2022-09-03 16:16 UTC (6 hours ago)
        
 (HTM) web link (www.sciencedaily.com)
 (TXT) w3m dump (www.sciencedaily.com)
        
       | galgot wrote:
       | Could it be that the Ys city legend in Brittany was this Welsh
       | legend transposed in Brittany, when the Bretons (originally Welsh
       | peoples) migrated there... very interesting.
       | https://en.wikipedia.org/wiki/Ys
        
       | gus_massa wrote:
       | I hate when the articles have no images, so here are a few:
       | 
       | Wikipedia page about the legend
       | https://en.wikipedia.org/wiki/Cantre%27r_Gwaelod
       | 
       | The PDF of the research article is in
       | https://journals.lib.unb.ca/index.php/ag/article/view/32596/...
       | (https://doi.org/10.4138/atlgeo.2022.005)
       | 
       | The old map with the islands is in page 5 and a new map with the
       | sea depth is in page 7.
        
         | lumost wrote:
         | It does make you wonder if the legend of atlantis is simply due
         | to a myriad of ancient civilizations that vanished under rising
         | oceans. Given human population centers cluster around ocean
         | ports/rivers with easy access to fresh drinking water. It seems
         | entirely plausible that estimates of human population size at
         | the end of the last ice age may be substantially off.
        
           | swayvil wrote:
           | Through the grinder of mythology black can become white and
           | up can become down. You can't trust it except in the
           | blurriest sense.
           | 
           | This is what makes science so special and revolutionary. The
           | alternative being normal horrible epistemology like everybody
           | does it all the time since forever.
           | 
           | And yes, even science can be mythologized.
        
             | didericis wrote:
             | Not all of that older epistemology is horrible. Mathematics
             | and logic and proof are ancient.
        
           | bertil wrote:
           | There's a fairly credible theory that Atlantis was a port
           | city in the Richat Structure.
        
             | 01acheru wrote:
             | The whole circularity of this structure actually bring
             | Atlantis and it's rings to mind, and also we must remember
             | that the Sahara had a much different climate not that long
             | ago.
             | 
             | https://en.m.wikipedia.org/wiki/African_humid_period
        
               | simonh wrote:
               | That's true, but it beggars belief that the civilisation
               | Atlantis conjures to mind would leave zero physical
               | evidence of significant structures behind.
        
               | PicassoCTs wrote:
               | It would also have significant trade and its artifacts
               | would show up along the traderoutes.
        
               | rustymonday wrote:
               | We don't know that it hasn't left any physical evidence
               | behind. The origin of many archaeological artifacts are
               | not known for certain. It's possible that there is
               | pottery and other artifacts from Atlantis that we've
               | already unearthed.
        
               | simonh wrote:
               | I was commenting in the context of the Eye of Africa,
               | it's a fascinating structure that happens to have some
               | dimensional characteristics that vaguely resemble Plato's
               | description. There's just no physical evidence of any
               | significant architecture there of any kind.
        
               | svrtknst wrote:
               | Not just zero physical evidence - zero evidence _at all_.
               | Afaik it doesn't appear until Plato uses it, and he
               | claims that its thousands of years old or something like
               | that. That should reasonably have traces in other
               | accounts through the years.
               | 
               | I did hear a fairly credible theory that it is just an
               | allegory invented by Plato, but influenced by various
               | other myths and political centers (such as king Minos
               | rule on Crete).
        
               | tremon wrote:
               | The island Thera was destroyed by a volcanic eruption
               | some 1200 years before Plato:
               | https://en.wikipedia.org/wiki/Santorini_caldera. The
               | collapse of the island would have triggered tsunamis all
               | across the Aegean Sea, so it's very likely many coastal
               | towns had their own stories of being "swallowed by the
               | sea".
        
               | twic wrote:
               | Exactly, Atlantis is in Tunisia:
               | https://medcraveonline.com/IJH/is-atlantis-related-to-
               | the-gr...
        
             | layer8 wrote:
             | It's not credible at all:
             | https://theness.com/neurologicablog/index.php/no-atlantis-
             | ha...
        
             | MichaelCollins wrote:
             | Aka the "Eye of Africa" (wikipedia seems to have scrubbed
             | almost all trace of this commonly used name.)
             | 
             | I don't buy it it all. The lowest point of this structure
             | is presently several hundred meters above sea level. There
             | is almost no archeological trace of human habitation, save
             | for some ancient stone tools (no trace of structures, no
             | middens indicating dense population.) These tools date to
             | the Late Pleistocene to early Holocene, when sea levels
             | were _even lower_ than they are today (in other words, this
             | formation was even further from the sea then.)
        
               | UberFly wrote:
               | Richat Structure
               | 
               | https://en.wikipedia.org/wiki/Richat_Structure
        
             | sampo wrote:
             | Then there is a fringe theory, that a somewhat advanced
             | ancient civilization and a city is sunken off the West
             | Coast of India. And that later travelers from India brought
             | the myth of a Western sunken city into Europe. Then
             | Atlantis would be in the Arabian Sea, East of Europe. But
             | West of India.
        
           | rustymonday wrote:
           | Here's the thing about Atlantis: even if you know exactly
           | where it is, and even if you can prove it, you'll find it's
           | nearly impossible to sell.
           | 
           | The best way to be compensated for its discovery is probably
           | to make a documentary, but this has been done dozens of times
           | already by people who claimed to know where it is. Networks
           | only have so much appetite for it. And even without that
           | hurdle, it's extremely difficult to get a hold of anyone who
           | might be able to help.
           | 
           | And if you went the academic route, you'd essentially be
           | publishing the information for free, running the risk of
           | someone else taking all the credit.
           | 
           | How would you even go about selling Atlantis? I'm seriously
           | asking.
        
             | MichaelCollins wrote:
             | Plenty of wealthy people sail all over the world, looking
             | for interesting things to see and treasure to loot.
             | 
             | And yes, there's a finite appetite for documentaries about
             | _" I found a few rocks that kind of look rectangular if you
             | squint real hard, I think it's Atlantis"_. But if you find
             | something more substantial than that, people will perk up
             | real quick.
        
             | zem wrote:
             | you don't sell discoveries like that. historically
             | speaking, the reward was either some explicit prize, or
             | simply the fame of being the discoverer, and the cost of
             | the exploration, as well as the prize if any, was borne by
             | some deep pocketed entity who wanted the discovery made
             | (the crown, the government or some academic body).
        
         | tpmx wrote:
         | Wikipedia:
         | 
         | > Legends of the land suggest that it may have extended 20
         | miles west of the present coast.
         | 
         | Any idea of how large these lands were, area-wise?
        
           | gus_massa wrote:
           | From the research article:
           | 
           | > _The dimensions of the offshore islands may be estimated in
           | proportion to these respective two sets of measurements, so
           | that the southern island measures approximately 6.6 x 3.8 km
           | (ca. 19.7 km^2) and the northern island 10.7 x 5.8 km (ca.
           | 48.7 km^2), and that the islands lie ca. 3.5-4.0 km from the
           | mainland shore. However, these measurements must be viewed
           | with extreme caution given the poor areal accuracy of the
           | Gough Map._
           | 
           | Later in the article they estimate that the sea erosion was
           | 5-10m/y and the alleged islands disappeared in 5
           | approximately centuries, so a width of 5km is consistent.
        
         | docmechanic wrote:
         | Thank you! Surely there is a Welsh writer of science fiction or
         | fantasy that can make good use of this knowledge ...
        
           | Andrew_nenakhov wrote:
           | Is this a reference to Susan Cooper?
        
             | galangalalgol wrote:
             | That was my first thought on seeing the headline as well.
        
             | docmechanic wrote:
             | No, but she's exactly the sort of writer that I was
             | thinking of.
        
       | tombh wrote:
       | I grew up in this part of the world! Quite a strange
       | juxtaposition seeing my home on the front page of this site.
       | 
       | So maybe I can offer some lesser known interesting context:
       | 
       | Wales is only some 300km west of London, yet I have childhood
       | memories (some 35 years ago) of needing to try to speak Welsh to
       | my elderly (in his 80s) neighbour who struggled with English.
       | 
       | There is a theory that English's use of "do" (so-called "Do-
       | support") comes from the Welsh language.
       | https://en.wikipedia.org/wiki/Do-support#Origins
       | 
       | The stones for Stonehenge come from the Preseli mountains, a
       | small range of blue-ish hills exactly on the coast where these
       | lost islands are proposed.
       | 
       | There is a Welsh settlement in Argentina:
       | https://en.wikipedia.org/wiki/Y_Wladfa
       | 
       | Not strictly Welsh, but the Severn Estuary, which is the calm,
       | funnel of sea between Wales and England, that invites ships into
       | the harbour of Bristol, points exactly towards Newfoundland in
       | North America. This Welsh-English estuary is where John Cabot
       | made the second recorded voyage of a modern European to the New
       | World[1]. Nowadays, we think of Airports as being the doorways to
       | whole new worlds, but there was a time when it was the coastline
       | and harbours of the South West British Isles that rang and echoed
       | with the adventures, legends, captains, pirates, spices, gems and
       | foreigners of unimaginable far away lands.
       | 
       | 1. https://en.wikipedia.org/wiki/John_Cabot#Second_voyage
        
       | docmechanic wrote:
       | New study of coastal geography and a medieval map.
        
       | paganel wrote:
       | > Evidence from the Roman cartographer Ptolemy suggests the
       | coastline 2000 years ago may have been some 13 km further out to
       | sea than it is today.
       | 
       | This sort of stuff doesn't get repeated often enough in this day
       | and age, we live with the illusion that the sea levels as we now
       | have them should remain the same over the next centuries no
       | matter what.
        
         | 988747 wrote:
         | It does not get repeated because it would suggest that sea
         | level changes are natural, as opposed to being caused by
         | industrial CO2 emissions, and limiting CO2 emissions is a huge
         | business right now.
        
           | potsandpans wrote:
           | wow! more braindead takes on hn?!
        
           | simonh wrote:
           | Firstly sea levels have nothing to do with this at all, these
           | coastal changes were caused by erosion.
           | 
           | Anyway some sea level changes are natural, some look to be
           | man made. Just because natural changes can happen, it doesn't
           | follow that man made one's don't happen, or if they do that
           | it's ok.
        
             | MichaelCollins wrote:
             | > _Firstly sea levels have nothing to do with this at all,
             | these coastal changes were caused by erosion._
             | 
             | The paper seems to say these islands were likely formed
             | from unconsolidated glacial till, and subsequently eroded
             | by some combination of melting glaciers and the Holocene
             | sea-level rise.
             | 
             | Islands formed when the sea level was low, and eroded when
             | the sea level was high. When you say sea level rise had
             | 'nothing to do with it', you're contradicting the paper.
        
           | thrwyoilarticle wrote:
           | Conspiracy theory hogwash. Doggerland is well-discussed.
        
           | withinboredom wrote:
           | I imagine that most people haven't thrown gasoline on a fire.
           | Surely they can't understand making something bad way more
           | worse than it was.
        
           | MichaelCollins wrote:
           | General knowledge and popular culture acknowledge natural
           | climate changes. However I think people often overestimate
           | the length of time involved in those changes, *overestimating
           | the amount of time that has passed since dramatic climate
           | changes in the past. E.g. knowing of "the ice age" but
           | estimating that it happened millions of years ago and took
           | millions of years for these climate changes to naturally
           | occur.
           | 
           | It's certainly not a _secret_ that Manhattan Island was
           | covered by nearly half a mile of ice less than 20,000 years
           | ago, nobody is suppressing this knowledge, but nevertheless I
           | think there 's a wide gap between public knowledge and common
           | knowledge.
        
           | StanislavPetrov wrote:
           | >It does not get repeated because it would suggest that sea
           | level changes are natural
           | 
           | Sea level changes are absolutely natural and have fluctuated
           | wildly over the history of the planet. The sea level was 360
           | feet lower 13,000 years ago. Certainly human activity has a
           | measurable effect on the environment but it is simply absurd
           | to pretend that our environment (including sea levels) isn't
           | in a constant state of flux.
        
             | Ma8ee wrote:
             | The problem now is that the change is some orders of
             | magnitude faster than they used to be.
        
               | StanislavPetrov wrote:
               | That isn't true at all. The history of the planet is
               | marked by rapid, repeated changes in the climate. The
               | climate is going to change - drastically - just like it
               | has for the entire history of the earth. We should
               | understand that our activity has an influence but it is
               | not the only factor or the dominant one.
               | 
               | https://earthobservatory.nasa.gov/ContentFeature/GlobalWa
               | rmi...
        
         | [deleted]
        
         | gus_massa wrote:
         | Note that the change of this part of the coastline was caused
         | by sea erosion of the cliff, not a raise of the sea level.
        
       | fritztastic wrote:
       | It's always interesting (for me) to learn of lost lands- from
       | before humans were around, too, but especially those mentioned in
       | human stories. There are many of these [1]- some of which are the
       | subject of fascinating and informative documentaries, such as
       | this one about Doggerland [2].
       | 
       | [1] https://en.wikipedia.org/wiki/List_of_lost_lands?wprov=sfla1
       | 
       | [2] https://m.youtube.com/watch?v=DECwfQQqRzo
        
       | UberFly wrote:
       | The article says the research was based on the Gough Map. Just
       | look at this thing. Quite impressive.
       | 
       | http://www.geog.port.ac.uk/webmap/thelakes/large/ggh1.jpg
        
       | sveme wrote:
       | Pretty similar to the story of Rungholt[1], which is clearly no
       | longer myth, but fact, with lots of remnants being found.
       | 
       | [1]https://en.wikipedia.org/wiki/Rungholt
        
       | balentio wrote:
       | Wasn't this posted to Hacker News before?
        
         | gus_massa wrote:
         | I only could find this from another URL:
         | https://news.ycombinator.com/item?id=32542953 (2 points | 12
         | days ago | 0 comments)
         | 
         | Note that from the FAQ:
         | 
         | > _Are reposts ok? If a story has not had significant attention
         | in the last year or so, a small number of reposts is ok.
         | Otherwise we bury reposts as duplicates._
         | 
         | I sometimes link old post with low points or few comments when
         | one of the comments is very interesting and explain or debunk
         | the post. But in this case there is nothing interesting in the
         | old discussion. (Is the other URL better? Both look similar to
         | me.)
        
       | jbverschoor wrote:
       | Why do people always think that things from the past are simply
       | not real.
       | 
       | "They"(us in the future) could say the exact same thing about all
       | the things that are real in our current lives.
       | 
       | All these mythical creatures (soon to be extinct)
       | 
       | Having such a surplus of fresh water.
       | 
       | At a certain point they will just deny Dubai was created
        
         | nelblu wrote:
         | It is human nature to glorify the past and romanticize the
         | greatness of "those days". There is nothing wrong in
         | maintaining a healthy skeptical mind towards outrageous claims.
         | Further the onus of proof lies on the person making the claim.
        
         | simonh wrote:
         | There are plenty of things from the past that are absolutely
         | real. We have tons of physical evidence for settlements all
         | over the world throughout history. I'm sure there's more yet to
         | be discovered. But until we discover it, it's just hearsay.
         | 
         | There may well have been a real place that inspired Plato's
         | mention if Atlantis, but only one. Not the many hundreds of
         | possible locations suggested over the centuries. They can't all
         | be Atlantis, if any of them are.
        
           | ecolonsmak wrote:
           | 200yrs from now well meaning discussion will consider if the
           | long extinct elephant was in fact mythical
        
         | fritztastic wrote:
         | > At a certain point they will just deny Dubai was created
         | 
         | That reminds me of a (reportedly fake) quote attributed to
         | Sheikh Rashid bin Saeed Al Maktoum:
         | 
         | "My grandfather rode a camel, my father rode a camel, I ride a
         | Mercedes, my son rides a Land Rover, and my grandson is going
         | to ride a Land Rover, but my great-grandson is going to have to
         | ride a camel again."
        
         | MichaelCollins wrote:
         | The way of vulgar skepticism is to assume something doesn't
         | exist until it has been proven to exist.
         | 
         | In cases like the Lock Ness monster or invisible pink dragons
         | in my garage, that approach happens to yield good results (and
         | so would blanket generic cynicism.) But it falls apart quick
         | when you stray very far from the fantastical, e.g. _" masks
         | have not yet been proven to work, therefore masks don't work."_
         | 
         | A bayesian approach to skepticism is much better than vulgar
         | skepticism. Bayes asks the skeptic to consider the general
         | outlandishness of a possibility P(A), the basic likelihood of
         | apparent evidence occurring regardless of the hypothesis P(B),
         | and the likelihood of there being evidence at all even if the
         | hypothesis were correct P(B|A).
        
       | theknocker wrote:
        
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