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Saint Michael Sword: Are the cathedrals really on a straight line?

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21–30 of 261 posts

Re: Saint Michael Sword: Are the cathedrals really on a straight line?

#21

One might begin to calculate the odds of seven cathedrals aligning perfectly in a straight line purely as a result of chance.

One might indeed begin; see https://news.ycombinator.com/item?id=40595595

(600 was for rough number of cathedrals, but apparently these 7 sites are not even all cathedrals? That would make that factorial much bigger, then...)

Re: Saint Michael Sword: Are the cathedrals really on a straight line?

#22
post #5

> Did the builders knew the earth was round? Yes. This has been known since ancient greek times, and Aristotle calculated the size reasonably well. Maybe not every labourer knew or cared but the architects almost certainly did

Exactly. I think I'm more annoyed at this point with the myth of the ignorant Medievals than I am with the myth of the flat earth itself. Even knowing the earth is round, if I were going to put things in a "straight line" geographically, I'd do it with the reference most people would actually use and see: a 2D map.

> most people would actually use and see: a 2D map

The expert used spherical mathematics. This was quite widespread knowledge required to build proper sun dials and in the Late Medieval period for long distance navigation. Some were able to use analog computers, called "armillary spheres", for the calculations, which were known since Antiquity.[1]

[1] See https://en.wikipedia.org/wiki/Armillary_sphere

Re: Saint Michael Sword: Are the cathedrals really on a straight line?

#23
post #19
post #10

> Certainly 7 cathedrals are too many to be a coincidence With the number of cathedrals in Europe I don't really think this is supported.

They are all dedicated to the same saint, St. Michael.

Which isn't really all that special. In England alone, there are 816 churches named after St Michael. He's pretty popular. It'd be a lot more spectacular if they were all named after someone much more obscure.

https://en.wikipedia.org/wiki/Dedications_in_the_Church_of_E...

Re: Saint Michael Sword: Are the cathedrals really on a straight line?

#24
post #18

Are they aligned because they are famous, or are they famous because they are aligned? Or are they aligned because if I pick 7 famous monuments aligned I can draw a line, look over my shoulder and say "ho look, if we draw a line it match!" From wikipedia, the list of St Michael churches: St. Michael's Church (disambiguation) Parroquia de San Miguel Arcángel (es), San Miguel de Allende, Guanajuato Mexico World Heritag…

But only 7 of those are Cathedrals, and only those are aligned.

I think none of them are cathedrals. There's a couple islands, a mount, a shrine, a monastery, a temple...

Re: Saint Michael Sword: Are the cathedrals really on a straight line?

#26
Matt Parker ("Stand up Maths" channel on YouTube) gave a very informative and entertaining lecture in 2010 titled "Clutching at Random Straws" [0], which, among other things, covered something similar. From the subtitle of the video: "Did aliens help prehistoric Britons find the ancient Woolworths civilisation?" The answer is "no". Given enough data points, you can find all sorts of patterns.

0: https://www.youtube.com/watch?v=sf5OrthVRPA

Re: Saint Michael Sword: Are the cathedrals really on a straight line?

#28
post #17

One might begin to calculate the odds of seven cathedrals aligning perfectly in a straight line purely as a result of chance.

Please do so! This would be a fascinating experiment and perhaps a famous one, given that similar answers are the knee jerk reaction of armchair skeptics the world over.

I asked GPT-4. It did the following calculation (summarized):

Let's consider Europe as roughly a 10 million square km area. The probability of a single point falling within a 50 km wide band (assuming the band runs the full length of Europe) is about 0.01581 (1.581%). The probability of seven points aligning within a 50 km wide band across Europe is approximately: 10^-14

Re: Saint Michael Sword: Are the cathedrals really on a straight line?

#29

Are they aligned because they are famous, or are they famous because they are aligned? Or are they aligned because if I pick 7 famous monuments aligned I can draw a line, look over my shoulder and say "ho look, if we draw a line it match!" From wikipedia, the list of St Michael churches: St. Michael's Church (disambiguation) Parroquia de San Miguel Arcángel (es), San Miguel de Allende, Guanajuato Mexico World Heritag…

There are apparently 816 churches dedicated to the saint in England alone.

https://en.wikipedia.org/wiki/Dedications_in_the_Church_of_E...

Re: Saint Michael Sword: Are the cathedrals really on a straight line?

#30
post #17

Earlier quoted context omitted.

Please do so! This would be a fascinating experiment and perhaps a famous one, given that similar answers are the knee jerk reaction of armchair skeptics the world over.

I asked GPT-4. It did the following calculation (summarized): Let's consider Europe as roughly a 10 million square km area. The probability of a single point falling within a 50 km wide band (assuming the band runs the full length of Europe) is about 0.01581 (1.581%). The probability of seven points aligning within a 50 km wide band across Europe is approximately: 10^-14

Doesn't the first point have a probability of 1? It's the subsequent ones that become less and less likely.
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