this post was submitted on 20 Aug 2023
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Autism

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Like, why wouldn't people be interested in knowing that the African slave trade of the colonial period actually started with Jewish kids, but they all died in the African climate of Sao Tome, so the Portuguese started buying slaves from the Congolese, which they captured from neighboring tribes, to work the fields??

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[–] Drivebyhaiku@lemmy.world 52 points 1 year ago (1 children)

Info dumping is a love language.

[–] ivanafterall@kbin.social 26 points 1 year ago (1 children)

Oh, shit. That's it. I need someone who's Information Submissive in order to be happy.

[–] Shortstack@reddthat.com 17 points 1 year ago (1 children)

Everyone loves an active listener

[–] ivanafterall@kbin.social 13 points 1 year ago (2 children)

I admit your version sounds better.

[–] Agamemnon@lemmy.world 3 points 1 year ago

'Information Submissive' sounds perfect for me. It got just the right amount of hinting at kink. 😇

I am going to use that description from now on.

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[–] starman2112@sh.itjust.works 35 points 1 year ago (12 children)

I always feel like I'm boring when I'm hanging out with my friends and family, because my interests aren't interesting to anyone else. I can talk about From The New World for hours. Ask me about how to build an SSTO in Kerbal Space Program. Wanna talk about astronomy? I could show you how to pick a lock! How about a Rubik's Cube? Wanna play D&D? I can help you pick a class, and walk you through what each one can do! Do you wanna see one of the things I've programmed Tasker to do? Are you sure? That Subnautica GPS is my greatest achievement in life!

Uhhh... Yeah, ok, let's talk about that country song everyone's obsessed with I guess

[–] Sprucie@feddit.uk 13 points 1 year ago (1 children)

Please tell me more about tasker and the subnautica GPS!

[–] starman2112@sh.itjust.works 12 points 1 year ago* (last edited 1 year ago) (3 children)

I wrote about it on that other website a couple years ago, I'll link to archives of my posts there

Here's what I submitted to the Subnautica forum

Here's what I submitted to the Tasker forum

Tasker is an Android application that lets you automate many different things. One of its features is setting variables for use in your tasks–for example, I have a task sets the variable %Wallpaper to a random number between 1 and 152, and sets my phone wallpaper to DCIM/Backgrounds/%Wallpaper.png every time I turn on my screen, because I don't want to stay married to one specific wallpaper

You can also do math with variables, which allowed me to program the trilateration algorithm on this webpage into Tasker. All you need to input is your current depth, and your distance to each of three specific landmarks (oceanmarks?), and it'll do all the complicated squaring and adding and subtracting for you, and then give you a notification with your approximate coordinates–in testing, it's usually accurate to within about 10 meters, which is more than accurate enough for us to see whatever we're looking for.

I wish I could actually understand why the squaring and adding and subtracting gives you accurate coordinates, but you don't got to know what baking powder does to make good bread, you just gotta follow the recipe!

[–] qaz@lemmy.world 2 points 1 year ago (1 children)

Do you mean Pythagoras theorem?

[–] starman2112@sh.itjust.works 2 points 1 year ago

I know what the Pythagorean theorem is, I implemented it in the program to account for differences in depth because trilateration with three known points only works in 2 dimensions.

It's stuff like this

https://www.101computing.net/wp/wp-content/uploads/trilateration-formula-2.png

And this

https://www.101computing.net/wp/wp-content/uploads/trilateration-formula-3a.png

That I can't quite wrap my head around

[–] joonazan@discuss.tchncs.de 2 points 1 year ago* (last edited 1 year ago)

It represents each circle as an equation that is only true when x and y are on the circle. By requiring that all three equations are true, you can find all points that are on all three circles.

You can either convince yourself that three circles can only intersect at one point or you can use the fact that two variables and three independent equations means that there are zero or one solutions that satisfy all equations.

You could actually even make a system that only needs two distances (and the depth)! Two circles can only intersect at two points, so you just need to figure out which one of the two you are. That can be done by looking at which of the landmarks is on the left when looking towards them.

Now the really difficult thing here is to figure out why this works even with inaccurate inputs, as the math presented on the site assumes that everything is perfectly accurate.

You can actually formulate different ways of computing the position that differ in how they react to measurement error. One way to investigate that is to take the derivative wrt. to one of the radii.

This resonated with me because I once did the same thing but in 3d and with magnetic field strength instead of distance. I never found a satisfying solution because magnetic fields are capsule-shaped rather that spherical. The shape is described by a 4th degree equation, so its exact solution is too large to be useful and the whole system of equations cannot be solved symbolically.

I hope that didn't get too intimidating.

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[–] JTheDoc@lemmy.world 5 points 1 year ago* (last edited 1 year ago) (1 children)

Ha dude, I'm always happy to listen to people who make me go "Did they just write this for me or something?" There's plenty of niche things people will just ignore or seem disinterested in, it's good to look and probe around so don't feel too disheartened or discouraged. I've become a recluse over the years and relent giving up on people for so long because some people merge/find their cliques, there's no healthy way to force yourself into a group without compromising what makes you happy. I think everything you mentioned is awesome, and I feel the same way!

Please message or something if you want! 😎

Just because you mentioned KSP and have been having fun with SSTOs recently, feel free to join the KSP community here too! There's people who look for these communities and probably feel put off by it being a fairly new group from the lacks a lot huge activity, but posting would help encourage and really bring people together to show their work without it being competitive or so "established"! There's posts from people who deserve being able to discuss their work or look at others already on there, I don't want yours or their hard effort in the game and experience to be for nothing! Doesn't have to be anything amazing, often people's best work are the ones they haven't felt ready to share/post so no judging! :)

https://lemmy.world/c/ksp

Hi there! Looks like you linked to a Lemmy community using a URL instead of its name, which doesn't work well for people on different instances. Try fixing it like this: !ksp@lemmy.world

[–] BackOnMyBS@lemmy.world 3 points 1 year ago

you should join our Matrix chat! we were talking about Kerbal Space Program yesterday 🧑‍🚀🚀🌕 and one of the users was brainstorming for a D&D session as GM.

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[–] Deestan@lemmy.world 23 points 1 year ago (3 children)

From the bottom of my heart: I would love getting stuck next to you at a party.

But be prepared to hear about pre-electronic "AI" via analog differentiation calculators though.

[–] NoneOfUrBusiness@kbin.social 10 points 1 year ago

I'm prepared, hit me.

[–] BackOnMyBS@lemmy.world 7 points 1 year ago

omg, i would love it! someone that actually has something to say 😮🥳

[–] stingpie@lemmy.world 5 points 1 year ago (1 children)

Do you mean AI in the modern sense, like neural networks, or AI in the traditional sense? As far as I'm aware, the first neural-ish AIs were cybernetic. Before that the only generally programmable computers were electromechanical.

[–] Deestan@lemmy.world 5 points 1 year ago* (last edited 1 year ago) (1 children)

An important aspect of the phrase "Artificial Intelligence" is the ever-moving goalposts. In the mid 20th century, a machine that could follow and perform mathematical instructions was an insane and exciting dream of intelligent machines. Then we got the first computers, and people went "yeah okay but they're not intelligent" and the research of AI went into machines that could make useful decisions. Then we got programmable algorithmic machines, which clearly were "cool but not intelligent like us yes?" and the dream of AI became machines that could learn. Then machines that could imagine. Then machines that could conceivably impersonate humans. Right now the next goalpost is a bit up in the air with everything from "must have deep understanding" and "must have agency" to "must have soul", but the most workable contender seems to be "can know truth".

ANYWAY

So using the late-middle-of-AI-history definition of AI, we have machines that can make decisions and learn, taking over some human tasks.

The same basic concept, the "Centrifugal Governor" or "PID controller" has been invented independently since at least the 17th century. A full PID has the capacity to look at the state of a system (Proportional), estimate how the system will change (Derivative), and remember how the system responds to change (Integral).

The first controllers like the mechanisms used by windmills, and later the "centrifugal governor" invented for steam engines, mechanically changes how high the windmill stone should be or how much steam should be let out of the boiler, based on how fast the machine is running. While simple, it literally replaced human labor and was more effective than the person standing around and moving the lever whenever something seemed to go faster or slower. These did the equivalence of multiplication using only gears, levers and centrifugal force.

Then later, we have machines that could perform derivation! Whitehead torpedoes from the 19th century used pressure sensors and gravity-aligned levers to determine how deep a torpedo was in the water, and whether it was gaining depth (tilted down) or gaining height (tilting up). Still purely mechanical, these could be programmed to remain at a fixed depth, and gently steer themselves to the correct one if they were off. This meant you could just throw them into the water pointing the right direction and away they went.

Later again, and still before electronics we had the first instance of - via very strict use of definitions here - machine learning. A pneumatic PID controller would calculate an integration over all error values. It was used by American warships as an auto-pilot of sorts. It steered the rudder to maintain a course, and "learned" via an inflated balloon whether its steering was sufficient or not. The latter part was necessary because wind or streams would turn the ship in a way that pure calculation could not predict.

Today we use PIDs everywhere to control temperatures and hobby drone balance and a million other things, and they tend to be electronic. But, you might still find a mechanical PD controller in your chainsaw if you open it up.

Some more source material to dig into: https://en.wikipedia.org/wiki/Centrifugal_governor

[–] qaz@lemmy.world 2 points 1 year ago

Interesting, I never really considered how a torpedo stayed on course when computers were still the size of rooms.

[–] CorrodedCranium@leminal.space 16 points 1 year ago (2 children)

I saw a post, probably a couple years ago now, on Reddit about a group activity where people are given 30 minutes to create a PowerPoint on any subject then have to do a presentation.

Kind of reminds me of that

[–] enthusiasticamoeba@lemmy.ml 5 points 1 year ago (3 children)

I have always wanted to have a group of friends who would be down with that. But I recently started seeking specifically autistic friends, and I believe it will soon be a reality!

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[–] magikmw@lemm.ee 15 points 1 year ago

My ADHD head wouldn't be able to listen to all that without finding a bunch of connections to other space-time localities, concepts, and works of art and fiction, and having to immediately share. I wonder who'd drop dead exhausted first.

[–] can@sh.itjust.works 13 points 1 year ago (2 children)

There's a time and a place.

[–] Kolanaki@yiffit.net 13 points 1 year ago* (last edited 1 year ago) (2 children)

The time is 1863. The place: the southern United States.

The civil war is raging and...

[–] Sproux@lemmy.dbzer0.com 4 points 1 year ago* (last edited 1 year ago) (1 children)

This is unrelated but i feel like i see you in every thread i scroll through, very cool.

[–] surewhynotlem@lemmy.world 4 points 1 year ago

It's the toupee problem. You only notice that crazy user name.

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[–] SasquatchBanana@lemmy.world 11 points 1 year ago

Time: Now

Place: Here

[–] mindrover@lemm.ee 12 points 1 year ago

I will gladly listen to you ramble about your niche interest but only if it is somewhat similar to one of mine.

[–] turbodrooler@lemmy.world 10 points 1 year ago (1 children)
[–] BackOnMyBS@lemmy.world 3 points 1 year ago (2 children)
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[–] match@pawb.social 9 points 1 year ago (1 children)

Can you also contrast it with the short lived Pacific slave trade from southeast Asia to Mexico?

[–] BackOnMyBS@lemmy.world 2 points 1 year ago

not at this moment lol, but I'd be happy to hear if you can!

[–] Kbin_space_program@kbin.social 9 points 1 year ago (1 children)

I was under the impression that the slave trade, at least for Europe, was originally a branch of the slave trade of the Ottoman Empire.

After all, most of the "rich" looks the nobility and wealthy of Europe were emulating was that of the Ottomans.

[–] mestari@lemmy.world 4 points 1 year ago (1 children)

The post mentions Africa though, does it make a difference?

[–] Kbin_space_program@kbin.social 9 points 1 year ago* (last edited 1 year ago)

Well yes. The Ottoman empire during almost all of the colonial period was a serious powerhouse and major player; one where slavery was one of its major economic engines. And you can't really include any discussions about slavery in Europe without also including the Ottomans.

There is a trick to tracking it though. A lot of the relevant official records from the Empire don't track the movement of slaves or women.

If we're concerned about ethnicities, which we are here, the trick is they weren't. They would note the religion of slaves, and had a tendency to just lump all Africans as Muslims or Arabs(Arap). The documents we have that make notes about sub-Sarahan African slaves comes primarily from British or French people traveling through the markets or cities.

For a numerical example: half of the slaves in markets in Ottoman Cyprus between 1590 and 1640 were sub-saharan African. Of the remaining half, almost half of those were Russian, the rest Greek and Slavic.

[–] MrPoopyButthole@lemmy.world 8 points 1 year ago (3 children)

Maybe I should give this matrix thing a try. I'd love to be on the receiving end of an info dump by some of you!

[–] SoonaPaana@lemmy.world 3 points 1 year ago

I don't understand what this 'matrix' thing is! How do I join? I want to get this info dump too!

[–] BackOnMyBS@lemmy.world 2 points 1 year ago

come on in! we're pretty silly and supportive

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This coupon is good for the next 50 or so years.

[–] Dumbkid@lemmy.dbzer0.com 5 points 1 year ago (1 children)

In 1967 a man named William J. Knight flew a Rocket Plane and achieved a speed of 4520 MpH

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[–] stevedidWHAT@lemmy.world 2 points 1 year ago

Not everyone has enjoyed the learning they’ve received and are against doing it more sadly

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