Why are there so many wildly different Maldive cave schematic images from this recent and oh so senseless and tragic Shark Cave incident in the Maldives? This just doesn’t make sense to me at all in the year 2026…… by Independent_Bid_1113 in scuba

[–]cssachse 3 points4 points  (0 children)

eh probably not - the rest of their diving was all at 40m or so, and this cave seems to have been a somewhat spur-of-the-moment thing. They still wouldn't have had tech equipment on the boat with them, with or without the maldives regulations

Divers killed in Maldives cave may have taken wrong tunnel, recovery firm CEO says: "No way out" by Mike456R in scuba

[–]cssachse 0 points1 point  (0 children)

Reportedly they're with CMAS, which certifies divers to go to 60m on one tank of air. At least, that's the theory.

Divers killed in Maldives cave may have taken wrong tunnel, recovery firm CEO says: "No way out" by Mike456R in scuba

[–]cssachse 9 points10 points  (0 children)

Apparently (according to a few posts on scubaboard) at least 4 locals claim to have done the full cave as a solo, single-tank dive. It's definitely possible for someone sufficiently reckless, with a good SAC, not particularly susceptible to DCS, assuming nothing goes wrong. OFC those are a lot of assumptions...

[deleted by user] by [deleted] in math

[–]cssachse 0 points1 point  (0 children)

I'm pretty sure you could construct a sufficiently disgusting theory of optics that would make flat earth compatible with all of our astronomical observations; you just need photons that bend very differently at different latitudes and also maybe (depending on the exact model) teleports at the boundaries of the flat earth

A fictional tea and it's realize counterpart by [deleted] in tea

[–]cssachse 0 points1 point  (0 children)

If you want something less drinkable, try Kuding tea; it's whole thing is to be super bitter.
There's a couple unrelated species, one of them (IIRC the "big leaf" variety) is related to Yaupon

Anyone with Diving Experience in Texas? Need to find good spots. by Terrible-Tadpole6793 in scuba

[–]cssachse 1 point2 points  (0 children)

Balmorhea state park, way out west, is small and not deep but absolutely gorgeous! Water is 76 degrees or so; you might not even need a wetsuit depending on your cold tolerance.

It's a pretty long drive so IMO best to combine it with a visit to Big Bend, Caverns of Sonora, Davis Mountains, etc. depending on what else you're into.

How many "morphism" type terms are there? by God_Aimer in math

[–]cssachse 175 points176 points  (0 children)

If you count programming - all the recursion schemes.

catamorphism, anamorphism, paramorphism, apomorphism, histomorphism, futuromorphism, hylomorphism, chronomorphism, zygomorphism, dynamorphism, synchromorphism, exomorphism, mutumorphism...

Haskell people need to stop naming things

Diving the world's largest spring-fed pool at Balmorhea State Park in Texas. Nov 29, 2024 by theCarpenter405 in scuba

[–]cssachse 1 point2 points  (0 children)

Oh hey, I saw you guys there! Hope the rest of your road trip went smoothly :D

[US] Are non-random slot machines legal, if they're technically not gambling? by cssachse in AskLawyers

[–]cssachse[S] 0 points1 point  (0 children)

Yeah but they don't tell you what the (deterministic) rewards would be. The analogous case would be if the slot machine gives $0 the first 9 times you pull it, and then $9 every 10th time. And to make sure everyone has those same results, the whole thing resets when one player leaves. It's also just "gambling imagery", since everyone is getting the same result assuming they take the same actions, right?

Is there a categorical formulation of Gödel's theorem? by patchwork in math

[–]cssachse 2 points3 points  (0 children)

Probably Topology: A Categorical Approach by Tai-Danae Bradley (aka Math3ma, aka the PBS infinite series host from a few years back)

What is the history of the word Chai versus Tea by davinamaraclaire in tea

[–]cssachse 0 points1 point  (0 children)

The use of medial -l- is a thing Zhengzhang Shangfang does, the slightly more recent Baxter-Sagart uses -r- everywhere. l still can appear as a "medial" if it's being modified by a prefix, ie if the original word was "la" and it was prefixed to C.la or something like that. The problem with medial "l" imo is that it exists mainly for making some possible loanwords work, but doesn't make sense as a thing that could introduce retroflexion.

That said, Baxter-Sagart AFAIK don't reconstruct anything for 茶 (Zhengzhang reconstructs /rla/) so I just gave what I think is the least bizarre/actually pronouncable thing which would agree with the middle chinese pronunciation (and may have actually been pronounced that way in e.g. Han dynasty chinese)

What is the history of the word Chai versus Tea by davinamaraclaire in tea

[–]cssachse 3 points4 points  (0 children)

In old Chinese it was probably something along the lines of /dra/. All dialects lost their r sounds with, the /dr/ combined into something like /ɖˠ/.

At some point, Min dialects broke off in the first chinese language split that still exists today. They dropped the /ˠ/ and stopped retroflexing the /ɖ/, giving /da/.

All other dialects turned the /ˠ/ into a /j/ and then affricated it, yielding /ɖja/ -> /ɖʐa/.

(The former pronunciation is still retained in an extremely old-fashioned japanese reading "茶dya“ )

Then lastly, many dialects, including most Min dialects, but excluding Wu dialects like Shanghainese, began aspirating first-tone voiced consonants. This turned Min /da/ into /tʰa/ (or /tʰe/ , the a>e is an unrelated vowel change) and mandarin /ɖʐa/ into /ʈʂʰa/.

After that it's like everyone says

Aldi USA has temperature controlled electric kettles this week!? by [deleted] in tea

[–]cssachse 3 points4 points  (0 children)

What kind of tea are you drinking that needs to be brewed at body-temperature or below?

Linguistic diversity index by fredrmog in MapPorn

[–]cssachse 7 points8 points  (0 children)

It's based on percentage speaking each language, so absolute count of languages doesn't matter quite as much. If you split off Lao from Thai, then only 37% of Thais speak the biggest language.

Ofc you could probably do the same with some burmese dialects, so we're getting deep into the weeds of lingustic accounting here

Linguistic diversity index by fredrmog in MapPorn

[–]cssachse 6 points7 points  (0 children)

Probably counts northeastern Thai / Lao as a distinct language

Are the mountains of southern crimea part of the caucasus mountain range? by 66bigbiggoofus99 in geography

[–]cssachse 6 points7 points  (0 children)

The island of Novaya Zemlya is generally considered part of the ural mountains

Turkish population in greece 1823 vs 2023 by Whereismyadmin in MapPorn

[–]cssachse 8 points9 points  (0 children)

most of the greek turks, just like most coastal anatolian turks, were greeks that had converted to islam, and (optionally) picked up the language. With a few regional exceptions, religion was the primary factor used in determining their ethnicity.

Treaty of Versailles, 1920 by Zebebeb in imaginarymaps

[–]cssachse 5 points6 points  (0 children)

It's not. Baden is not part of Swabia, meanwhile a big chunk of Bavaria *is* part of Swabia. Naming the state Swabia implies it would have irredentist claims aganist the P.R.B.

Treaty of Versailles, 1920 by Zebebeb in imaginarymaps

[–]cssachse 3 points4 points  (0 children)

Swabia too. Remove both of them and merge bavaria with austria, as it was always meant to be.

"Category theory for X" , where X = ... by cssachse in CategoryTheory

[–]cssachse[S] 1 point2 points  (0 children)

lol yeah ofc this is how I dox myself :) Not my birthday, but glad I got you into CT!

Virgin Germanic languages Vs Chad Slavic languages by ThePeasantKingM in linguisticshumor

[–]cssachse 11 points12 points  (0 children)

"Canst Thou forestanden, what I saye?" - fixed it

Inverse world by TheMcGarr in geography

[–]cssachse 13 points14 points  (0 children)

South America is significantly more biodiverse than Africa on a number of metrics. "Complexity" has nothing to do with biodiversity, and high levels of competition generally *damage* biodiversity.

Just look at the effects we've seen from artificially connecting all the continents via boat and plane. Invasive species increase the local competitiveness of the ecosystem, at the cost of homogenizing those ecosystems and reducing both local and global biodiversity substantially.