After some investigation and benchmarking, it looks like the best PIR protocol for this use case is YPIR+SP (from February). On a single compute- and network-constrained server, with users on constrained (and possibly metered) networks, this would amount to providing service to up to 1000 users while keeping latencies reasonable; by (quadratically) scaling the server(s) enough, that could become up to 100,000. That means this method of message routing could definitely work, although I look every day in case new protocols are published.

Source: IEA

Seems like the DPRK is struggling to find more coal. They are producing more energy than ever from alternate sources, but the transition is not going fast enough. Any more positive explanation for this?

Edit: tl;dr: all tools seem to be capable of 28 nm process, except the lithography machines. However, the report (why?) doesn't include the most advanced lithography tools that are known to be manufactured.

Source

This is a sequel to my previous post. The idea is the same, but I'm using better methods as was suggested in the comments.

As u/Sodium_nitride (thank you!) explained, here...

• ...I use a production matrix instead of the Cobb-Douglas function.
• ...I use capital-time instead of capital, to handle depreciation.
• ...classes consume commodities, seeking to maximize the amount consumed.

Also, I purchased the book suggested by u/davel :)

We use the following definitions:

• Labor is measured relative to A's total labor power.
• B has b labor power, assumed to be proportional to population.
• Capital-time and commodities are measured in units of what can be produced directly from 1 unit of labor.
• Labor sold is represented with w, and the salary is used to purchase capital-time s_k and commodities s_c.

Today they published a new report in the series. To my surprise, it includes a second chart with revenue-based data. Enjoy!

I'm learning game theory these days, and I've tried my hand at some problems inspired by ML theory. Here's one I found really interesting.

Let's assume the following (clearly unrealistic) situation:

1. Working class (A) and bourgeoisie (B) form perfectly cooperative coalitions.
2. They may negotiate salaries, with no class having any mechanism to obtain a better bargaining position.
3. A cooperatively owns some amount k of capital, while B owns (arbitrarily) 1. In principle, k < 1.
4. B has some labor power b, while A has (arbitrarily) 1. Again, b < 1.
5. Production follows a Cobb-Douglas function, where the sum of the output elasticities of capital and labor is 1.
6. Both classes consume the same proportion of their income and use the remainder to acquire more capital.

Therefore, the payoffs in our problem can be stated like this (where w is the labor given to B and s is

I have been thinking about implementing this for quite some time, but I would like some feedback from people more knowledgeable than me on the matter.

There's been some great progress in the field of Private Information Retrieval (PIR) protocols. Recently, in a 2022 article, Lin et al. describe an "updateable DEPIR", with both read and write times that can be made sublinear to database size.

I wonder if one couldn't use a combination of this technique and regular public-key cryptography to provide fully anonymous message routing. One could write outgoing messages to a fixed address and issue private reads to their contacts' addresses, with the messages themselves being encrypted with the receiver's public key.

The benefit of this would be a messaging protocol wherein the server wouldn't just be oblivious to the content of all messages, but also the social graph itself, plus all message-sending operations becoming deniable as a side effect.

First of all, I'm sorry if my question could be easily answered by finding the right source. Overall I'd say I read very little theory written by contemporary comrades, and that's something I need to fix once I have the time.

Remember this post (tl;dr: did an A2 Russian language examination after nothing more than Duolingo lessons for two years)? Well, I passed the tests! Performed kind of poorly in the essay, as expected, but still well enough not to hurt my overall score; spoken test went fine (to my surprise), as did the comprehension tests.

1 more year has passed, and I'm still tracking these numbers, albeit now posting with a different username. The upward tendency has not just continued, but even increased; now Linux is nearing 4 % market share globally and over 2 % on Steam.

I'm taking a CEFR A2 Russian language exam in a few minutes. Let's see if a massive Duolingo addiction is all it akes to crack it.

I remember this post that compared the quality of life in the DPRK and the US. There are many ways in which traditional stats like the GDP per capita exhibit bias in favor of some countries; countries may differ in their...

• ...distribution of wealth.
• ...basic expenses.
• ...cost of products and services.

So, I decided to give it a shot. I started from median wealth per adult values published by UBS (data from 2022); my logic was that two people who end up, no matter their income, with the same amount of expendable income will acquire a similar amount of value in the form of equities, real estate, vehicles... By using the median value, I make sure that wealth in countries with high inequality isn't overestimated.

Then, I multiplied these values by the ratio between adjusted (international dollars at 2017 prices PPP) and unadjusted GDP per capita of each country, using data from 2022 by the IMF.

There are some interesting things to note within

Ok, so I was reading about solarpunk and circular economy and such, and came across this. Seems pretty reasonable, but also very vaguely worded, both by Wikipedia and the Capital Institute. I don't yet understand what they actually advocate for in terms of economic power dynamics, and I was wondering if any of you have heard of this concept before and think it's worth reading more into it.

Ps. if you think it's some sort of lunatic pseudo-science please let me know, that can help me keep myself safe.

I've been thinking about this a lot lately. Obviously there's the surface-level matter of speculation and deceitful schemes that's been going on around this field for the last few years, but the theoretical background is interesting, rapidly evolving, and seems to be packing a great deal of transformative potential.

I'm not sure what to believe about this. On the one hand, cryptocurrencies are the go-to option whenever one wants to conceal their economic activity, which doesn't seem like a good thing in a socialist economy (e.g., could lead to a black market-like dynamic).

On the other hand, it's becoming increasingly clear that the general idea of reducing extractable value comes naturally from the advancements in these technologies. Trust does not need to be paid for at a price any higher than the minimum required to keep the system working. It is entirely possible that production be entirely governed via the blockchain with no way to extract surplus value at all (e.g., risks hedge

It's really cool that the trend is going on. It's also interesting how this seems to correlate so well with inflation in the US (ignore badly applied statistical test):

Guess that capital gotta keep expanding at all costs :)