sodium_nitride

joined 7 months ago
[–] sodium_nitride@hexbear.net 109 points 1 day ago

Absolutely based.

"I’m all for free speech, but the self-proclaimed health gurus are causing so much damage and honestly need some regulation so I’m for this regulation," one user wrote. "You can’t practice medicine, psychology, physio etc, without a license, so I’m not sure why they were allowed to 'practice online' in the first place."

This user gets it.

[–] sodium_nitride@hexbear.net 43 points 2 days ago* (last edited 2 days ago) (1 children)

Why are we pretending that nation-states are singular entities with their own "wills"? They are networks of intelligent actors exchanging information and "energy" (money in this case). The "israel" net is heavily overlapped with the "america" net, and there is a large flow of information/energy across the 2 nets. The "america" net being much larger gives more of its energy to "israel" than vice versa, but the word "control" is meaningless for describing interactions as complicated geopolitics.

A lot of the discourse around this whole topic uses the verbal short-hand of treating nation-states as if they were entities with a will. And for good reason because a lot of the times, it's an OK approximation. But other times, you just end up arguing about meaningless things.

[–] sodium_nitride@hexbear.net 5 points 2 days ago (3 children)

Although in theory digital circuits have to deal with quantisation error, the imprecision of analog computing also makes it face a similar problem. There is always going to be an error bar. If it will be lower with analog computers, that's great.

As for the AI sigmoid curves, they do not need to actually be sigmoid curves. The point is to clip output and add non-linearity. The discrete steps are not a problem and I've seen some AI architectures for even 2-bit models.

But you are correct that digital circuits experience fundamental limitations of accuracy that could in theory be bypassed by analog circuits. I don't think analog circuits are bad, and am quite excited for them. I'm just wary of the overwhelming amounts of clickbait from journalists.

its voltage just is the gradient.

I'm not sure what set up the peking university experiment uses, but the voltage is proportional to the gradient of current only if you feed current to an inductor, and the proportionality constant is dependent on the inductor and surrounding components.

I think I will try to read the paper when I'm done with exams, because I am curious on the peking researchers' technique.

[–] sodium_nitride@hexbear.net 5 points 2 days ago (5 children)

the breakthrough achieves analog computation accuracy comparable to digital systems, improving analog precision by five orders of magnitude — or nearly 100,000 times.

This statement needs much elaboration before it becomes meaningful.

Unlike digital chips that move data back and forth between memory and processor cores (a process that consumes huge energy), RRAM executes computations directly within memory cells.

I'm 90% sure you can do in-memory computing with digital as well

Throughput hundreds to thousands of times higher than top-tier GPUs. Energy efficiency improvements of up to 1,000x

This seems rather amazing and extravagant. I would say that there are many obstacles before this type of thing could be put into the real world, but with China, they can do it. Probably they won't get thousands of times the performance of digital GPUs outside lab conditions, and not for all applications, but this could be a big leap forward.

[–] sodium_nitride@hexbear.net 2 points 2 days ago (1 children)

Certainly, but under capitalism, capital is always overpriced, especially in less developed countries. Many places where this kind of thing would be useful would look at the upfront costs and just go for lithium batteries instead. They might even take the pakisthan approach of having large numbers of individual consumers install solar+battery packs for individual use.

Doing some calculations about space usage, it's also not good, even if you pack shit tons of mass together.

Supposing a 100 m column using blocks that have a density of 3000 kg/m^3. Blocks are lifted from when their bottom touches h=0 m to when their top touches h=100 m

The energy stored is maximised when the total height of all blocks in this column is 50 m. Their center of mass travels from 25m to 75m for 50m difference.

The energy stored per unit area= densityg(height difference^2)

This comes out to 73.575 MJ per square meter, or 20.4 kWh per square meter. This is, not a lot.

[–] sodium_nitride@hexbear.net 7 points 3 days ago

So you mean that getting battery materials is polluting? Yes, that's true, but the energy density of gravity batteries (excl. Hydro) is simply too low. Their adoption rates will be low. Battery chemistries and configurations will continue to improve, while gravity batteries are already close to the best they will ever be.

[–] sodium_nitride@hexbear.net 6 points 3 days ago (2 children)

I'm not sure what you mean by chowing through to get to the battery.

[–] sodium_nitride@hexbear.net 11 points 3 days ago

I think this project makes more sense as a short term grid stabiliser rather than an energy storage unit.

The power output is good, and would be clean and have inertia. That's something batteries struggle with.

This kind of facility could replace flywheels. But not batteries.

[–] sodium_nitride@hexbear.net 13 points 3 days ago* (last edited 2 days ago) (11 children)

A good lithium battery can store 250 Wh/kg. That's 900 kilo joules.

How high would have to lift a kilogram of matter to get the same energy storage?

Approximately 91,743 meters

Technically, you could replace a kilo of lithium ion battery with 1000 kilos of waste material and lift it by 100 meters to get similar energy output

But at that point, how many poor countries are going to bother? It's a lot of construction costs and space usage.

[–] sodium_nitride@hexbear.net 14 points 5 days ago

At the end of the day, the electoral system is a contest of strength between 2 or more cults of personality. This is more prevalent in some countries than other, but the very basic aspect of representative "democracy", aka elections (selecting a person to rule) basically boils down to giving a few people the power to make decisions for everybody else. It's dictatorial by nature.

[–] sodium_nitride@hexbear.net 16 points 6 days ago

(Source)[https://www.iea.org/countries/china/electricity]

(Source)[https://www.iea.org/countries/united-states/electricity]

Energy data from 2023 indicates that Chinese households and the service consume way less energy than American households (per capita). For households, it's about 1/4rth. For services, it's about 1/8th per capita (rounded figures).

 

speed-dont-laugh

 

Idk what the fuck this brand is even called. It just says "vegetable" and is the culinary equivalent of crack cocaine. Yes, I did eat that entire pack in one sitting.

Ignore my hairy leg in the background. I'm boymodding.

 

This is the title of a slide that a person sitting next to me is working on catgirl-huh

Bro is generating these generic ass meaningless slides using a premium chatGPT. This is what we are killing the planet for kumagawa-jokerfied.

You know you are producing NOTHING OF VALUE if a chatbot outputting words without content can do your whole job for you.

... He just asked chatgpt if the thing he is working on counts as a digital platform.

 

I swear to fucking God many of the executives of the legacy manufacturers and retailers need to be shot. I'm trying to migrate my designs from Multisim now that I am liberated from hell (I graduated) to a FOSS. Unfortunately, I still keep encountering the problem of not being able to easily add new parts. Right now, I am trying to add shit to KiCAD.

I found someone online asking for a unified way to add parts to KiCAD (symbols, simulation model, 3D model, cost characteristics) and connect this to internet distributors.

Everyone replies by saying this isn't possible. You know why? Cause we don't have communism (yes, one of the replies literally starts talking about how communism doesn't work, but also open source is communism and open source is still cool). The parts vendors literally encrypt their models so that you can only download and simulate them if you pay for the keys. The online interfaces for searching parts want their subscription fees and try to sabotage free services.

And like, I get that some features cannot be implemented in a super convenient way for legitimate reasons (don't want to lock people into a single vendor, so there can't be a unified library). But dawgs, this industry is so cooked pray-against.

 

I had no idea that there was a fujoshi in the BBC cast of "journalists", and I have trouble believing that the arrestees would be forced to strip nude. Does anybody have more information on what is going on?

 

I saw this graph be posted around on reddit (the graphics definately look like they are from the zionist rag). I don't know which attack piece it was pulled out of though.

I'll be honest, I'm not sure what exactly is happening here, cause I didn't follow the election at all. However, I doubt that primaries are all too representative of the broader state of public opinion in NYC.

According to a quick Google search on Wikipedia, the primary had about 1 million votes, while the population of the 5 boroughs of NYC is almost 9 million.

In theory, a sample size of 1 million is more than enough to make a good statistical comparison, however, personally who votes in democrat primary is a self-selecting category.

Despite this, I am seeing the rather typical accusations levied against mamdani about champagne socialism or whatever (by the same people who don't mind killing the poor and third worlders, but I digress).

One commenter went as far as to proclaim that "there is no more proletariat in America. American labor has achieved the end of history. The cops no longer break their strikes. They all have good union jobs and desire cultural security instead of freebies. Ideology is the luxury of the wealthy".

Of course, the important possible explanations are left out

  1. Mamdani is a new guy with no name recognition. His campaign might simply have not reached low income voters who don't keep up with politics.
  2. A lag of 13 points still means that he has a significant base amongst the lowest income voters.
  3. Most households making between 50,000 and 100,000 in New York are, as far as I know, still working class and not bourgeois. "Working class" has an objective meaning. In fact, even a sole trader petite bourgeois is working class (since proletariat =/= working class, someone who does not own private property).
 

https://www.ni.com/nl-nl/shop/product/multisim.html

^^^^^

The above worthless trash known as "multisim", used for simulating circuits costs 905 EUR and

  1. Doesn't have a linux version
  2. Is missing 90% of new commercially available parts
  3. Doesn't have a method of easily adding those parts (except manually, 1 by 1) (as far as I know)
  4. Has garbage UI (you can only undo 4 times) (adding or removing a single component can easily use up more than 4 moves)
  5. Inconsistent simulations (making the sims work feels like trying to appease a capricious God to not curse you with famine)

The free open source software (qucs-studio) seems to have none of these problems, though I have barely used it.

 

We had a lunch lecture where this environmental scientist gave a talk about critical materials and how big of a problem our reliance on these are. He links the whole thing up with politics pretty well, explaining how various political actors are involved and benefit from this or that.

At some point, he even mentions how in the netherlands, policy doesn't get passed without a buy-in from industry. It means quite a lot, cause this guy is government hired in recommending policies.

Then he contradicts himself in the next paragraph by saying that this is the curse of democracy that people make stupid decisions.

I ask this guy about the contradiction. How you simultaneously harp about profits over needs, the evils of consultancy firms, and the inability of the Dutch government to do anything but pursue corporate interests, while also talking about the problems of "democracy"?

He just tells me "we are a democracy that's why the Dutch government listens to industry". Well not exactly that, but at least that's the message I get when he talks about all the corporate controlled parties winning the elections and how that's what the people chose.

Dude is this close to realising that the definition of liberal democracy is "legitimised rule by corporations" .

Of course, the lecture ends with a book recommendation for a book about the collapse of human civilisation. And a recommendation to go vote and participate in political parties.

Unlimited death upon elections.

 

It's over bros/siss/xes

I boiled the pasta, and instead of draining the water, I accidentally added the tomato sauce into the water with the pasta. My pasta is now soup.

The only saving grace is that I usually undercook my pasta and eat it crunchy. So I can still reduce the "soup" a bit before it becomes overcooked.

I just tasted the pasta. I added salt to it which was a mistake because the sauce I bought also has salt in it. I now am beginning to understand how that "if I cook even the simplest of food I will somehow fuck it up and poison everybody" gag in anime works.

 

I think the title is pretty self-descriptive. I love me some platonic ideals. They are so cute and cuddly catgirl-heart. I don't mind getting impaled by the octahedron kumagawa-jokerfied. I love it unconditionally. And the dodecahedron? It can get it panting.

There's even more platonic ideals I love. I love those platonic ideals where we assume some kind of context-less vacuum existence of things then debate about them. I love when we use this contexless category to lump things together and refer to the bundle as a single word. This is very helpful for not causing confusion. I was able to handle complexity when I had a BOY brain. But HRT has given me a GIRL brain. Even better, I love talking about good or bad. It makes me feel warm and cozy inside to smite my EVIL enemies.

No, this post isn't made in context of ANYTHING. This post is a platonic ideal!

28
submitted 6 months ago* (last edited 6 months ago) by sodium_nitride@hexbear.net to c/chapotraphouse@hexbear.net
 

I can't with this fucking paper anymore. I spent the past few days morning to night developing my models for the circuits I am working on. I have to submit this paper (for a first draft, so there is a silver lining to this) tomorrow by midnight. I had not run my simulations yet, or added citationSS.

I sit down to finally run my simulations, then I realized the circuit had a connection in a slightly different location than what I'd used in developing my theory. To my horror I have come to realize that this makes all my work over the past few days useless and I have to redevelop the theory.

I swear to fucking God, I'm done with this shit. I feel tempted to just ignore this problem and fix it by the time of my final draft. I've been working 7 days a week for God only knows how many weeks now. I just want a regular Sunday for once. I mean, I still have to make citationSS even if I ignore the other problem. And I have to study for a regular course as well...

Honestly ... having irregular hours as a student doesn't mean you have endless free time. It just means that you have no actual overtime protections because there is no concept of overtime and it feels like the university expects you to work 24/7. I'm pretty sure that I'm technically clocking in at 60 hours per week or something like that (50 at bare minimum), excluding the commuting time of about 10 hours.

And then there is the endless limitless chuderry of some of the people that I know. It's honestly kind of insane what people will tell you in private. I had this guy that I know go on a full hinduvata induced Adolf Hitler* type fantasizing about how he would genocide Pakisthan and China. Not very coincidentally, I knew this very outwardly "progressive" and liberal dude bro who got along very well with the Hinduvata when it came to the topic of China.

*he doesn't even deny it when I called him a hitlerite. Like he actually is aware of how insane the things he is saying are and just accepts it. catgirl-disgust

I've also seen our department's student run bar organize an event where the main attraction was to make fun of anti-fossil fuel protestors and trans people. Yes, the university advertises itself as inclusive. Yes, our department has a number of women that can be counted on your hands. Yes, our department's students constantly take courses from a different department for the purpose of chasing after girls. How could you tell?

And the weirdest of all is the kids who tell me about the criminal and political activities of their ultra rich families. Honestly, this shit is straight up endearing compared to everything else. Yes, I actually would like to know more about the Filipino underworld. Oh, your family has safehouses all over Greece and getaway drivers at standby at all times to escape the country at any time? <--- I'm not even joking about these.

I'll stop myself before I go even deeper into the deep end and go on an even bigger tangent. Of course I have to end this dumb rant on a sour note. The only person I've told about being trans to IRL is constantly misgendering me even when we're not in public.

The more I put my feelings into words, the more I think to myself, "what the fuck have I gotten myself into with this degree?".

 

God did not give us brains to agonise over writing academic papers and painstakingly add citations. We were given them so we could frolick in the fields and avoid predators.

And yes, maybe I should have documented my process these past 8 weeks so I wouldn't have to cram all the writing in the last week. But, in fairness, whose bright idea was it to give us 9 weeks to do design and write a paper, then 7 weeks to make a presentation and do final edits? Tf do I need 7 weeks to make a presentation for? Do they want me to hand animate the power point slides?

Also, when will I use these skills in the real world? I don't want to go into research!

Me crying about the degree i chose for myself -> bocchi-cry

Me reaping what I sow -> angery

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