Marcelo Alves
@marceloalvests.bsky.social
Professor do Departamento de Comunicação da PUC-Rio
Diretor de Metodologia do Instituto Democracia em Xeque
Diretor de Metodologia do Instituto Democracia em Xeque
Reposted by Marcelo Alves
🔎 Marcelo Alves, (@marceloalvests.bsky.social), professor do Departamento de Comunicação Social da PUC-RIO, apresenta artigo em que se investiga como a pesquisa científica é usada por grupos contrários às vacinas contra a COVID-19 no WhatsApp no Brasil.
youtu.be/JCG7uGnGYNQ
youtu.be/JCG7uGnGYNQ
October 15, 2025 at 2:40 PM
🔎 Marcelo Alves, (@marceloalvests.bsky.social), professor do Departamento de Comunicação Social da PUC-RIO, apresenta artigo em que se investiga como a pesquisa científica é usada por grupos contrários às vacinas contra a COVID-19 no WhatsApp no Brasil.
youtu.be/JCG7uGnGYNQ
youtu.be/JCG7uGnGYNQ
Reposted by Marcelo Alves
I’m excited to announce that my new book, _The Irrational Decision_, is now available for pre-order from Princeton University Press.
The Irrational Decision
How the computer revolution shaped our conception of rationality—and why human problems require solutions rooted in human intuition, morality, and judgment
press.princeton.edu
August 4, 2025 at 2:31 PM
I’m excited to announce that my new book, _The Irrational Decision_, is now available for pre-order from Princeton University Press.
Reposted by Marcelo Alves
Ooh, look. When we covered the climate impacts of machine learning (“AI”) on Rare Earth in June we found it really frustrating that none of the tech companies would tell anyone the water and energy costs. Now Google has made at least some of it public. More of this! (and preferably raw data too).
In a first, Google has released data on how much energy an AI prompt uses
It’s the most transparent estimate yet from one of the big AI companies, and a long-awaited peek behind the curtain for researchers.
www.technologyreview.com
August 23, 2025 at 8:19 AM
Ooh, look. When we covered the climate impacts of machine learning (“AI”) on Rare Earth in June we found it really frustrating that none of the tech companies would tell anyone the water and energy costs. Now Google has made at least some of it public. More of this! (and preferably raw data too).
Reposted by Marcelo Alves
More zero-click searches, same revenue for Google, less visibility for publishers?
Three things to read together on (1) how users respond to AI summaries, (2) what the company says it means for volume of queries and revenue, and (3) outside analysis on publishers’ visibility 1/4
Three things to read together on (1) how users respond to AI summaries, (2) what the company says it means for volume of queries and revenue, and (3) outside analysis on publishers’ visibility 1/4
July 25, 2025 at 7:45 AM
More zero-click searches, same revenue for Google, less visibility for publishers?
Three things to read together on (1) how users respond to AI summaries, (2) what the company says it means for volume of queries and revenue, and (3) outside analysis on publishers’ visibility 1/4
Three things to read together on (1) how users respond to AI summaries, (2) what the company says it means for volume of queries and revenue, and (3) outside analysis on publishers’ visibility 1/4
Reposted by Marcelo Alves
Puzzled by all these AI policies?
This Global AI Governance Matrix is very useful 👇
(credits to Walter Pasquarelli!)
This Global AI Governance Matrix is very useful 👇
(credits to Walter Pasquarelli!)
July 25, 2025 at 10:01 AM
Puzzled by all these AI policies?
This Global AI Governance Matrix is very useful 👇
(credits to Walter Pasquarelli!)
This Global AI Governance Matrix is very useful 👇
(credits to Walter Pasquarelli!)
Reposted by Marcelo Alves
Data centers das big techs viraram símbolo de “progresso” no Brasil: ganham isenção, água, energia e terrenos. É a mesma história de sempre: exploram o território enquanto lucram lá fora. Um colonialismo versão 2.0, mas agora com cabos e servidores no lugar de navios.
July 25, 2025 at 11:00 AM
Data centers das big techs viraram símbolo de “progresso” no Brasil: ganham isenção, água, energia e terrenos. É a mesma história de sempre: exploram o território enquanto lucram lá fora. Um colonialismo versão 2.0, mas agora com cabos e servidores no lugar de navios.
Reposted by Marcelo Alves
a couple of hours before my keynote, I went through an intense negotiation with the organisers (for over a hour) where we went through my slides and had to remove anything that mentions 'Palestine' 'Israel' and replace 'genocide' with 'war crimes'
1/
1/
my keynote happening in a few mins. registration here to stream it
aiforgood.itu.int/summit25/reg...
aiforgood.itu.int/summit25/reg...
July 8, 2025 at 9:58 AM
a couple of hours before my keynote, I went through an intense negotiation with the organisers (for over a hour) where we went through my slides and had to remove anything that mentions 'Palestine' 'Israel' and replace 'genocide' with 'war crimes'
1/
1/
Reposted by Marcelo Alves
Pra quem quer entender o que Trump fala na carta sobre as big techs, vale ouvir o podcast da @folha.com em que comento o uso de “liberdade de expressão” e “censura” mencionadas por Trump no anúncio das tarifas open.spotify.com/episode/1ZV3...
A ideia de liberdade de expressão e o caso Musk X Moraes
Café da Manhã · Episode
open.spotify.com
July 9, 2025 at 10:21 PM
Pra quem quer entender o que Trump fala na carta sobre as big techs, vale ouvir o podcast da @folha.com em que comento o uso de “liberdade de expressão” e “censura” mencionadas por Trump no anúncio das tarifas open.spotify.com/episode/1ZV3...
Reposted by Marcelo Alves
McDonald's uses an AI bot called "Olivia" for hiring. A pair of hackers found they could access every conversation job applicants had with it—including all the personal info they shared—by exploiting security vulnerabilities as basic as using the password "123456". www.wired.com/story/mcdona...
McDonald’s AI Hiring Bot Exposed Millions of Applicants’ Data to Hackers Who Tried the Password ‘123456’
Basic security flaws left the personal info of tens of millions of McDonald’s job-seekers vulnerable on the “McHire” site built by AI software firm Paradox.ai.
www.wired.com
July 9, 2025 at 7:31 PM
McDonald's uses an AI bot called "Olivia" for hiring. A pair of hackers found they could access every conversation job applicants had with it—including all the personal info they shared—by exploiting security vulnerabilities as basic as using the password "123456". www.wired.com/story/mcdona...
Reposted by Marcelo Alves
There is no ethical AI. The tech is based on stolen intellectual property, anti-solidarity between workers, labor exploitation, environmental injustice, climate destabilization, structural racism, and gender inequalities.
This will be an innovative new training space where educators will learn not just about how A.I. works, but how to use it wisely, safely and ethically. It will be a place where tech developers and educators can talk with each other, not past each other. www.nytimes.com/2025/07/08/t...
OpenAI and Microsoft Bankroll New A.I. Training for Teachers
www.nytimes.com
July 8, 2025 at 9:50 PM
There is no ethical AI. The tech is based on stolen intellectual property, anti-solidarity between workers, labor exploitation, environmental injustice, climate destabilization, structural racism, and gender inequalities.
Reposted by Marcelo Alves
The United States, that "beacon of democracy", has intervened in 128 elections since 1946 to shape political outcomes in their own interests.
June 18, 2025 at 7:41 PM
The United States, that "beacon of democracy", has intervened in 128 elections since 1946 to shape political outcomes in their own interests.
Reposted by Marcelo Alves
I am thrilled to share a new article in Sociological Methods & Research, “Quantifying Narrative Similarity Across Languages”. My co-first author Sol Messing and our collaborators developed a new approach to measuring “narrative similarity” between texts: journals.sagepub.com/doi/10.1177/...
Quantifying Narrative Similarity Across Languages - Hannah Waight, Solomon Messing, Anton Shirikov, Margaret E. Roberts, Jonathan Nagler, Jason Greenfield, Megan A. Brown, Kevin Aslett, Joshua A. Tuck...
How can one understand the spread of ideas across text data? This is a key measurement problem in sociological inquiry, from the study of how interest groups sh...
journals.sagepub.com
June 18, 2025 at 3:56 PM
I am thrilled to share a new article in Sociological Methods & Research, “Quantifying Narrative Similarity Across Languages”. My co-first author Sol Messing and our collaborators developed a new approach to measuring “narrative similarity” between texts: journals.sagepub.com/doi/10.1177/...
Reposted by Marcelo Alves
The last few months have been the most impactful by 404 Media yet. Stopping ICE data access; triggering changes at AI companies, more. We continue to be the most impactful tech outlet on the internet, and our subscribers let us do this work. Here are some of those recent examples:
June 19, 2025 at 1:21 PM
The last few months have been the most impactful by 404 Media yet. Stopping ICE data access; triggering changes at AI companies, more. We continue to be the most impactful tech outlet on the internet, and our subscribers let us do this work. Here are some of those recent examples:
Reposted by Marcelo Alves
Meta's AI discover feed is (still!) leaking user conversations with its AI. With its scale/import in shaping people's perception of reality, it is hard to think of a worse actor in the AI space than Meta, or to imagine a more invasive, user-hostile product than this
www.404media.co/meta-invents...
www.404media.co/meta-invents...
Meta Invents New Way to Humiliate Users With Feed of People's Chats With AI
In an industry full of grifters and companies hell-bent on making the internet worse, it is hard to think of a worse actor than Meta, or a worse product that the AI Discover feed.
www.404media.co
June 17, 2025 at 2:54 PM
Meta's AI discover feed is (still!) leaking user conversations with its AI. With its scale/import in shaping people's perception of reality, it is hard to think of a worse actor in the AI space than Meta, or to imagine a more invasive, user-hostile product than this
www.404media.co/meta-invents...
www.404media.co/meta-invents...
Reposted by Marcelo Alves
Ad libraries from Meta, Google and other platforms can be incredibly useful for reporting and investigations. Track campaigns and narratives, hunt for disinfo & scams, and more.
Here's the Indicator guide to using and investigating ad libraries:
indicator.media/p/a-... #OSINT
Here's the Indicator guide to using and investigating ad libraries:
indicator.media/p/a-... #OSINT
A guide to investigating digital ad libraries
How to dig into ad libraries from Google, Meta and other platforms to track spending, narratives, campaigns and more
indicator.media
May 30, 2025 at 7:00 PM
Ad libraries from Meta, Google and other platforms can be incredibly useful for reporting and investigations. Track campaigns and narratives, hunt for disinfo & scams, and more.
Here's the Indicator guide to using and investigating ad libraries:
indicator.media/p/a-... #OSINT
Here's the Indicator guide to using and investigating ad libraries:
indicator.media/p/a-... #OSINT
Reposted by Marcelo Alves
When asked to confirm the current year, Google’s AI-generated top result confidently answers, “No, it is not 2025.” www.wired.com/story/google...
Google AI Overviews Says It's Still 2024
When asked to confirm the current year, Google’s AI-generated top result confidently answers, “No, it is not 2025.”
www.wired.com
May 29, 2025 at 8:25 PM
When asked to confirm the current year, Google’s AI-generated top result confidently answers, “No, it is not 2025.” www.wired.com/story/google...
Reposted by Marcelo Alves
Data centers em alta, mas a que custo? 🌿
O Brasil está vivenciando uma corrida por mais infraestrutura digital, com a rápida expansão dos data centers.
Entenda riscos e o que está sendo feito! ⬇️
O Brasil está vivenciando uma corrida por mais infraestrutura digital, com a rápida expansão dos data centers.
Entenda riscos e o que está sendo feito! ⬇️
May 29, 2025 at 9:27 PM
Data centers em alta, mas a que custo? 🌿
O Brasil está vivenciando uma corrida por mais infraestrutura digital, com a rápida expansão dos data centers.
Entenda riscos e o que está sendo feito! ⬇️
O Brasil está vivenciando uma corrida por mais infraestrutura digital, com a rápida expansão dos data centers.
Entenda riscos e o que está sendo feito! ⬇️
Reposted by Marcelo Alves
Epic triple threat!!
Half way through the fab book by @karenhao.bsky.social; next: books by @emilymbender.bsky.social & @alexhanna.bsky.social and @adambecker.bsky.social that I picked up today from my local bookstore. Many thanks to them and others, who are exposing the stakes of the dystopic billionaire-funded AI con.
May 27, 2025 at 1:04 AM
Epic triple threat!!
Reposted by Marcelo Alves
A secret experiment that turned Redditors into guinea pigs was an ethical disaster—and could undermine research that’s only getting more urgent, @tombartlett.bsky.social reports. https://theatln.tc/xtKXNOyA
May 7, 2025 at 2:00 AM
A secret experiment that turned Redditors into guinea pigs was an ethical disaster—and could undermine research that’s only getting more urgent, @tombartlett.bsky.social reports. https://theatln.tc/xtKXNOyA
Reposted by Marcelo Alves
We are delighted to share the publication of Risky Research: An AoIR Guide to Researcher Protection and Safety, the culmination of over two years of collaborative effort by the AoIR Risky Research Working Group.
aoir.org/riskyresearc...
aoir.org/riskyresearc...
May 2, 2025 at 2:26 AM
We are delighted to share the publication of Risky Research: An AoIR Guide to Researcher Protection and Safety, the culmination of over two years of collaborative effort by the AoIR Risky Research Working Group.
aoir.org/riskyresearc...
aoir.org/riskyresearc...
Reposted by Marcelo Alves
"We are in the midst of a political coup that, if successful, would forever change the nature of US government. It is not taking place in the streets. There is no martial law. It is taking place cubicle by cubicle in federal agencies and in the mundane automation of bureaucracy." @eryk.bsky.social
Anatomy of an AI Coup | TechPolicy.Press
DOGE is gutting federal agencies to install AI across the government. Democracy is on the line, writes Tech Policy Press fellow Eryk Salvaggio.
www.techpolicy.press
May 2, 2025 at 5:41 PM
"We are in the midst of a political coup that, if successful, would forever change the nature of US government. It is not taking place in the streets. There is no martial law. It is taking place cubicle by cubicle in federal agencies and in the mundane automation of bureaucracy." @eryk.bsky.social
Reposted by Marcelo Alves
The AI jobs crisis is not coming—it's here right now. It just might not look the way many thought it would.
www.bloodinthemachine.com/p/the-ai-job...
www.bloodinthemachine.com/p/the-ai-job...
The AI jobs crisis is here, now
It's not coming, it has already arrived.
www.bloodinthemachine.com
May 2, 2025 at 4:25 PM
The AI jobs crisis is not coming—it's here right now. It just might not look the way many thought it would.
www.bloodinthemachine.com/p/the-ai-job...
www.bloodinthemachine.com/p/the-ai-job...
Reposted by Marcelo Alves
the US Department of Justice has won its antitrust case against Google, which accused the company of operating a monopoly in the ad tech industry. This is the 2nd time in a year that a federal court has ruled Google acted illegally to maintain a monopoly www.theverge.com/news/650665/...
Google loses adtech monopoly case
A loss for Google.
www.theverge.com
April 17, 2025 at 3:17 PM
the US Department of Justice has won its antitrust case against Google, which accused the company of operating a monopoly in the ad tech industry. This is the 2nd time in a year that a federal court has ruled Google acted illegally to maintain a monopoly www.theverge.com/news/650665/...
Reposted by Marcelo Alves
Scammers used OpenAI as part of a bot that flooded the web with SEO spam. Also bypassed CAPTCHA www.404media.co/scammers-use...
Scammers Used OpenAI to Flood the Web with SEO Spam
A new report from SentinelOne exposed the inner workings of AkiraBot, a program that bypassed CAPTCHAs and used AI-generated messages to target 420,000 websites.
www.404media.co
April 10, 2025 at 2:38 PM
Scammers used OpenAI as part of a bot that flooded the web with SEO spam. Also bypassed CAPTCHA www.404media.co/scammers-use...
Reposted by Marcelo Alves
Publicamos uma reportagem especial na BBC News Brasil, feita nos últimos quatro meses, que identificou mais de 200 contratos públicos de pavimentação firmados com construtoras autuadas ou que já compraram pedras extraídas de pedreiras que empregavam trabalhadores em situação análoga à de escravo.
April 10, 2025 at 4:23 PM
Publicamos uma reportagem especial na BBC News Brasil, feita nos últimos quatro meses, que identificou mais de 200 contratos públicos de pavimentação firmados com construtoras autuadas ou que já compraram pedras extraídas de pedreiras que empregavam trabalhadores em situação análoga à de escravo.