Autonomía digital y tecnológica

Código e ideas para una internet distribuida

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El “Atlas de la Vulnerabilidad Urbana” en España 2001-2011 es una aplicación web que ofrece información estadística y permite analizar la vulnerabilidad urbana a nivel de sección censal en todos los municipios de España, generando mapas temáticos de diferentes indicadores. Es una herramienta complementaria al “Visor del Catálogo de Barrios Vulnerables”, dentro de las varias que ofrece el “Observatorio de la Vulnerabilidad Urbana en España”. Se ha realizado a partir de los datos del INE (Instituto Nacional de Estadística) de los Censos de Población y Vivienda de 2001 y de 2011, y se actualizará próximamente cuando estén disponibles los nuevos datos correspondientes a 2021.

How to apply a filter
* Right-click on the layer listed in panel Layers
* Choose Filter...
* The window Query Builder is displayed

How to build a query in Query Builder
* Double click on a field in Fields list
* Select All in Values
* Choose a operator from Operators
* Double click on a value in Values list
* Your expression is shown at the bottom of the window
* Click Test to have a preview of how many rows are returned
* Click OK to apply the filter
* The layer is displayed according to the filter applied (you see a filter icon aside the layer name in panel Layers)

In this essay a new form of Internet activism is proposed: stacktivism. Building on hacktivist practices, this form of code and standard development as political struggle is envisioned to connect different layers of the techno-protological stack (also known as the Internet) in order build bridges between different, still isolated institutional levels and disciplinary practices such as grassroots wifi-access initiatives, interface design, geeks, computer scientists and governance experts. How do we envision a public stack that goes beyond the structures such ICANN, IETF and IGF that can take up the task to rebuild the Internet as a decentralized, federated, public infrastructure?

There’s three steps to add zoom and pan behaviour to an element:

  • call d3.zoom() to create a zoom behaviour function
  • add an event handler that gets called when a zoom or pan event occurs. The event handler receives a transform which can be applied to chart elements
  • attach the zoom behaviour to an element that receives the zoom and pan gestures

Quantile and quantize scales have very similar names, confusingly so. Here’s how to remember their meanings:

Quantiles are defined, in statistics, as separating a population into intervals of similar sizes (the 10% poorest, the 50% tallest, the 1% richest…); a quantile scale is essentially defined by its domain, a fixed set of values — when applied to a new value, it will then compute its ranking with respect to the initial distribution, and map that ranking to the output range.

To Quantize means to group values with discrete increments — like expressing a list of floating point numbers with 1 decimal digit, or rounding time to the closest minute. It is the output range that is discretized, and such a scale allows to transform an initial continuous range into a discrete set of classes.

Threshold scales allow us to directly specify the cut values that separate the classes.

When, on a print map, 1 cm figures a real distance of 1 km on the terrain, we say that the map has a 1:100,000 scale.

But scales are not limited to a proportional ratio (or rule of three) between an actual distance and a length on paper. More generally, they describe how an actual dimension of the original data is to be represented as a visual variable. In this sense, scales are one of the most fundamental abstractions of data visualization.

Scales from the d3-scale module are functions that take as input the actual value of a measurement or property. Their output can in turn be used to encode a relevant representation.

¿Qué es la economía del comportamiento?

[Karlos] Hay varios autores, especialmente Thaler y alguno que comparte con él sus teorías, que lo que vienen a decir es que, dada esa racionalidad delimitada, lo que tenemos es un gap. Queremos (en un discurso muy tiktokero) ser «la mejor versión de ti mismo» y estamos muy forzados a querer ser esa mejor versión. Pero claro, resulta que yo no era tan racional como me habían dicho, como ese «homo economicus» me había dicho. Ahí es donde estos autores dicen, podemos utilizar esos heurísticos, esos sesgos, para ayudar, mediante un concepto que utilizan: el paternalismo libertario. Tu siempre vas a tener la libertad de decir que no, pero yo voy a poder empujar (de ahí el libro famoso de Nudge, de Thaler) para, mediante ese pequeño empujón, poder hacer eso que tu irracionalidad no te permite.

Generated Space is the result of a year-long endeavour to make computers do unexpected things.

 

It presents a wide range of different generative algorithms; from organic flow fields and particle systems to rigid fractals and grammar-based shapes. Some more serious than others.

All the code is open source and available on GitHub, so feel free to change and improve upon any sketches that interests you.

…Olson is a lynchpin of YouTube’s burgeoning video essay genre, creating longform lecture performances on the intersection of pop culture and philosophy. No material is beneath his contemplation, which is thorough, to say the least: Like an enthusiastic professor, Olson deconstructs anything, from 50 Shades of Grey and Detective Pikachu to the conspiracies of flat-Earth truthers, with charitable nerdiness, electrified by sincerity. Over the past six years, he’s steadily grown his audience to some 640,000 subscribers.

Alphabet [YouTube and Google’s parent company] is absolutely doing what they can to undermine social services and civil infrastructure, but they’re not trying to destabilize the very mechanism by which individuals interact with the economy.

My ideal environment from which to do my stuff is a fantasy. It couldn’t exist in reality. I can’t say: I want a healthy network effect, I want good moderation tools, I want it to be frictionless for my viewers, and I also want it to keep up with changes in technology, and I don’t want to have to spend hundreds of hours implementing that myself. I want to be able to focus on my stuff, which is writing; which is making videos I don’t want to worry about hosting, and I want it all to be free of Big Tech, and I want it to be free of the decision making of some nebulous assholes.

I think there’s possibilities for the existence of a decorporatized version of the internet. It’s not going to come out of cryptocurrency, because that space is built off of financial incentives. The crypto space has a dire lack of imagination. 

He tenido una idea de negocio: los OGTs. Vienen a responder a una necesidad REAL de la sociedad. ¿Cuántas veces te has planteado comprar un NFT y no lo has hecho porque era demasiado caro o porque era demasiado barato? Aquí entra el OGT.

es normal que si mas de la mitad de nuestras interacciones son digitales, tiene sentido que me gaste 100k en un NFT antes que en una escultura en mi casa que veran 100 personas como maximo…

Por todo esto, la propiedad digital es una revolucion

I’m not at all ‘anti-crypto.’ I’m a big fan of cryptography. I am, however, anti- tax evasion, money laundering, ponzi schemes, multi-level marketing, and needless waste of energy.

I’m also anti- silver bulletism, anti-technosolutionism, and anti-convincing everyday people to invest their scarce capital in unregulated sectors where it’s very easy for them to lose everything with no recourse.

Additionally, I’m anti- focusing tons of energy on convincing everyday people that salvation lies in speculation.

Finally: WHAT IF the same amount of time and energy put into convincing everyday people to invest in cryptocurrencies, NFTs, and DAOs went into convincing everyone to move their money to credit unions, invest in local businesses & land trusts, & directly support artists?

Enable HTTP/2 module
Apache’s HTTP/2 support comes from the mod_http2 module. Enable it from:

a2enmod http2
apachectl restart

If above commands do not work in your system (which is likely the case in CentOS/RHEL), use LoadModule directive in httpd configuration directory to enable http2 module.
Add HTTP/2 Support
We highly recommend you enable HTTPS support for your web site first. Most web browser simply do not support HTTP/2 over plain text. Besides, there are no excuses to not use HTTPS anymore. HTTP/2 can be enabled site-by-site basis. Locate your web site’s Apache virtual host configuration file, and add the following right after the opening tag:

Protocols h2 http/1.1

Bueno cansado de que Correos me cobrase el trámite aduanero y después de leer en algunos foros que era posible el autodespacho pero no veía del todo claro cómo hacerlo me decidí a hacerlo por mi mismo.

Este documento pretende ser una guía donde les voy a explicar los pasos exactos, documentación a entregar y lugares a los que dirigirse.

Este trámite es válido para todos aquellos envíos que recibamos de la U.E., incluyendo la España peninsular. Además podrán calcular cuanto van a tener que pagar y así ver si les sale rentable hacerlo o no.

Reconstructing the original signal

The sound wave is converted into data through a series of snapshot measurements, or samples. A sample is taken at a particular time in the audio wave, recording amplitude. This information is then converted into digestible, binary data.

The system takes these measurements at a speed called the audio sample rate, measured in kilohertz. The audio sample rate determines the range of frequencies captured in digital audio.

L’écoute, dans un cadre d’action collective est donc, dans l’idée de construction relationnelle, au cœur du processus.

Marcher ensemble.

Écouter ensemble.

Faire ensemble…

Plutôt agir que parler, même si la parole est source d’enseignement, d’échanges et de transmission, d’invention même, l’action de terrain reste la meilleure façon de faire vivre et évoluer des idées, des projets. Et donc ici, de construire des paysages sonores dignes de ce nom. Écoutables.

L’expérimentation, ou l’expérienciation, le fait d’acquérir des connaissances par l’expérience personnelle, sont donc moteurs dans ces constructions audio-paysagères.

cables submarinos canarias 2015

Los cables submarinos en Canarias que conectan las islas entre sí son los siguientes. Entre paréntesis se indica el año de puesta en servicio:

  • Cables interinsulares de Telefónica: salvo en el caso de El Hierro, su configuración en anillos evita que una isla quede desconectada por la rotura de un cable.
    • Transcan 2 – S1: Gran Canaria – Fuerteventura (1990)
    • Transcan 2 – S2: Fuerteventura – Lanzarote (1990)
    • Pencan 5 – S2 (TFE-GC): Tenerife – Gran Canaria (1992)
    • Tegopa – S1: Tenerife – La Gomera (1995)
    • Tegopa – S2: La Gomera – La Palma (1995)
    • Candalta 1: Tenerife – Gran Canaria (1999)
    • Transcan 3: Gran Canaria – Lanzarote (1999)
    • Telapa: Tenerife – La Palma (2004)
    • Gomera-Hierro: La Gomera – El Hierro (2007)
    • Candalta 2: Tenerife – Gran Canaria (2010)
  • Cable Submarino de Canarias: dispone de dos cables submarinos entre Tenerife y Gran Canaria (2002).
  • Canalink: dispone de dos cables submarinos entre Tenerife y Gran Canaria y uno entre Tenerife y La Palma (2011).

 

Además, las islas están conectadas con el exterior por los siguientes sistemas:

  • Telefónica dispone de tres cables submarinos, dos conectan Cádiz con Tenerife (PENCAN 6 y PENCAN 8) y el tercero (PENCAN 7) con Gran Canaria. Los dos últimos fueron ampliados en 2015 con tecnología 100G.
  • Canalink dispone de un sistema de cable submarino que conecta Tenerife con Cádiz; este cable dispone de un ramal que conecta con Marruecos.
  • La isla de Tenerife está conectada al sistema ACE (Africa Coast to Europe), consorcio con participación de Orange.
  • La isla de Gran Canaria está conectada al sistema WACS (West African Cable System), consorcio con participación de Vodafone.

It’s probably good to have some clarity on why centralized platforms emerged to begin with, and in my mind the explanation is pretty simple:

  1. People don’t want to run their own servers, and never will.
  2. A protocol moves much more slowly than a platform. This isn’t a funding issue. If something is truly decentralized, it becomes very difficult to change, and often remains stuck in time. That is a problem for technology, because the rest of the ecosystem is moving very quickly, and if you don’t keep up you will fail.

…there is nothing particularly “distributed” about the apps themselves: they’re just normal react websites. The “distributedness” refers to where the state and the logic/permissions for updating the state lives: on the blockchain instead of in a “centralized” database.

One thing that has always felt strange to me about the cryptocurrency world is the lack of attention to the client/server interface. When people talk about blockchains, they talk about distributed trust, leaderless consensus, and all the mechanics of how that works, but often gloss over the reality that clients ultimately can’t participate in those mechanics.

With the shift to mobile, we now live firmly in a world of clients and servers – with the former completely unable to act as the latter – and those questions seem more important to me than ever.

This was surprising to me. So much work, energy, and time has gone into creating a trustless distributed consensus mechanism, but virtually all clients that wish to access it do so by simply trusting the outputs from these two companies without any further verification. It also doesn’t seem like the best privacy situation. Imagine if every time you interacted with a website in Chrome, your request first went to Google before being routed to the destination and back. That’s the situation with ethereum today. All write traffic is obviously already public on the blockchain, but these companies also have visibility into almost all read requests from almost all users in almost all dApps.

Instead of storing the data on-chain, NFTs instead contain a URL that points to the data. What surprised me about the standards was that there’s no hash commitment for the data located at the URL. Looking at many of the NFTs on popular marketplaces being sold for tens, hundreds, or millions of dollars, that URL often just points to some VPS running Apache somewhere. Anyone with access to that machine, anyone who buys that domain name in the future, or anyone who compromises that machine can change the image, title, description, etc for the NFT to whatever they’d like at any time (regardless of whether or not they “own” the token). There’s nothing in the NFT spec that tells you what the image “should” be, or even allows you to confirm whether something is the “correct” image.

I think this is very similar to the situation with email. I can run my own mail server, but it doesn’t functionally matter for privacy, censorship resistance, or control – because GMail is going to be on the other end of every email that I send or receive anyway. Once a distributed ecosystem centralizes around a platform for convenience, it becomes the worst of both worlds: centralized control, but still distributed enough to become mired in time. I can build my own NFT marketplace, but it doesn’t offer any additional control if OpenSea mediates the view of all NFTs in the wallets people use (and every other app in the ecosystem).

If we do want to change our relationship to technology, I think we’d have to do it intentionally. My basic thoughts are roughly:

  1. We should accept the premise that people will not run their own servers by designing systems that can distribute trust without having to distribute infrastructure.
  2. We should try to reduce the burden of building software.
Platform's relationship to users

Centralized platforms follow a predictable life cycle. At first, they do everything they can to recruit users and third-party complements like creators, developers, and businesses.

They do this to strengthen their network effect. As platforms move up the adoption S-curve, their power over users and third parties steadily grows.

 

When they hit the top of the S-curve, their relationships with network participants change from positive-sum to zero-sum. To continue growing requires extracting data from users and competing with (former) partners.

Famous examples of this are Microsoft vs. Netscape, Google vs. Yelp, Facebook vs. Zynga,  Twitter vs. its third-party clients, and Epic vs. Apple.

Cuando la batalla política se lleva a cabo en el territorio del conocimiento, no tiene nada de extraño que aparezca, además de las típicas disputas entre los expertos, un estrafalario rechazo al conocimiento en general, que adopta hoy formas muy diversas de escepticismo y credulidad, como la desinformación, el negacionismo o las teorías conspiratorias.

Hay un populismo antitecnológico, que sospecha de la ciencia y el desafecto frente a la representación, pero hay también un populismo epistémico que consiste en procesar una fe ciega en que la política puede ser disuelta en los datos, las cifras, las evidencias científicas y el saber experto.

…deseo de despojar a la política de lo político, es decir, de la gestión de intereses en conflicto, la toma de decisiones con un saber insuficiente y el esfuerzo por lograr compromisos sostenibles.