Moises Jafet
@moisesjafet.com
Toolmaker, physicists, technologists, software engineer & parallel entrepreneur. Founder of @PollZapper.com and @yotober.com. 🇨🇦
Pinned
Reposted by Moises Jafet
I started to create images of dwarf galaxies in the local group for wikipedia. These (and other galaxies) are basically our neighbours. 👋🔭 📷 images from the legacy surveys
see my latest uploads (includes some Hubble images) commons.wikimedia.org/w/index.php?...
see my latest uploads (includes some Hubble images) commons.wikimedia.org/w/index.php?...
November 10, 2025 at 4:58 PM
I started to create images of dwarf galaxies in the local group for wikipedia. These (and other galaxies) are basically our neighbours. 👋🔭 📷 images from the legacy surveys
see my latest uploads (includes some Hubble images) commons.wikimedia.org/w/index.php?...
see my latest uploads (includes some Hubble images) commons.wikimedia.org/w/index.php?...
Reposted by Moises Jafet
i’m excited to announce that i am hiring (again)!
i am looking for a postdoc in computational astrophysics that’s excited about models of stellar transients and multi-messenger astronomy to join my group (star stuff @ steward) at @uarizona.bsky.social!
apply here ✨💥: aas.org/jobregister/...
i am looking for a postdoc in computational astrophysics that’s excited about models of stellar transients and multi-messenger astronomy to join my group (star stuff @ steward) at @uarizona.bsky.social!
apply here ✨💥: aas.org/jobregister/...
Postdoctoral Research Associate I Computational Stellar Astrophysics (Steward Observatory) | American Astronomical Society
The University of Arizona (U of A) Department of Astronomy and Steward Observatory (SO) invites applications for a Postdoctoral Research Associate. The successful candidate will work with Professor Ca...
aas.org
November 10, 2025 at 10:25 PM
i’m excited to announce that i am hiring (again)!
i am looking for a postdoc in computational astrophysics that’s excited about models of stellar transients and multi-messenger astronomy to join my group (star stuff @ steward) at @uarizona.bsky.social!
apply here ✨💥: aas.org/jobregister/...
i am looking for a postdoc in computational astrophysics that’s excited about models of stellar transients and multi-messenger astronomy to join my group (star stuff @ steward) at @uarizona.bsky.social!
apply here ✨💥: aas.org/jobregister/...
Reposted by Moises Jafet
The largest egocentric dataset.
Egocentric (first person) video is a general learning framework that passively captures how skilled workers do their jobs.
- 10,000 hours
- 2,153 factory workers
- 1,080,000,000 frames
Egocentric (first person) video is a general learning framework that passively captures how skilled workers do their jobs.
- 10,000 hours
- 2,153 factory workers
- 1,080,000,000 frames
November 10, 2025 at 11:54 PM
The largest egocentric dataset.
Egocentric (first person) video is a general learning framework that passively captures how skilled workers do their jobs.
- 10,000 hours
- 2,153 factory workers
- 1,080,000,000 frames
Egocentric (first person) video is a general learning framework that passively captures how skilled workers do their jobs.
- 10,000 hours
- 2,153 factory workers
- 1,080,000,000 frames
"Ads on a Google search are dependent on Google doing badly. If it was giving you the best answer, there’d be no reason ever to buy an ad above it."
searchengineland.com/chatgpt-ads-....
searchengineland.com/chatgpt-ads-....
ChatGPT ads are coming – and they won’t look like Google Ads
OpenAI CEO Sam Altman says Google’s ad model profits when search fails – and vows ChatGPT will take a different approach to ads and commerce.
searchengineland.com
November 9, 2025 at 6:16 AM
"Ads on a Google search are dependent on Google doing badly. If it was giving you the best answer, there’d be no reason ever to buy an ad above it."
searchengineland.com/chatgpt-ads-....
searchengineland.com/chatgpt-ads-....
Reposted by Moises Jafet
Our Milky Way galaxy disk is not really flat...
"Observations show the disk of our galaxy is not flat but warped and waving. Astronomers are still working out the reasons why".
🧪 #Science #Space #Astronomy
Our Milky Way’s Warped Disk Keeps Getting Weirder
www.scientificamerican.com/article/why-...
"Observations show the disk of our galaxy is not flat but warped and waving. Astronomers are still working out the reasons why".
🧪 #Science #Space #Astronomy
Our Milky Way’s Warped Disk Keeps Getting Weirder
www.scientificamerican.com/article/why-...
November 7, 2025 at 2:05 PM
Our Milky Way galaxy disk is not really flat...
"Observations show the disk of our galaxy is not flat but warped and waving. Astronomers are still working out the reasons why".
🧪 #Science #Space #Astronomy
Our Milky Way’s Warped Disk Keeps Getting Weirder
www.scientificamerican.com/article/why-...
"Observations show the disk of our galaxy is not flat but warped and waving. Astronomers are still working out the reasons why".
🧪 #Science #Space #Astronomy
Our Milky Way’s Warped Disk Keeps Getting Weirder
www.scientificamerican.com/article/why-...
Reposted by Moises Jafet
Also a big problem for physics professors
The beauty backfire effect: Being too attractive can hurt fitness influencers, new research shows
Pretty isn’t always profitable.
theconversation.com
November 6, 2025 at 3:53 AM
Also a big problem for physics professors
Reposted by Moises Jafet
A typical European car is parked 92% of the time. It spends 1/5th of its driving time looking for parking. Its 5 seats only move 1.5 people. 86% of its fuel never reaches the wheels, and most of the energy that does, moves the car, not the people.
Sound efficient?
HT @ellenmacarthurfdn.bsky.social
Sound efficient?
HT @ellenmacarthurfdn.bsky.social
November 4, 2025 at 10:33 PM
A typical European car is parked 92% of the time. It spends 1/5th of its driving time looking for parking. Its 5 seats only move 1.5 people. 86% of its fuel never reaches the wheels, and most of the energy that does, moves the car, not the people.
Sound efficient?
HT @ellenmacarthurfdn.bsky.social
Sound efficient?
HT @ellenmacarthurfdn.bsky.social
Reposted by Moises Jafet
Amazon opens a new 10,000-square-foot automated Whole Foods store in Pennsylvania partly staffed by robots; customers can scan and order items from the aisles (Matt Day/Bloomberg)
Main Link | Techmeme Permalink
Main Link | Techmeme Permalink
November 5, 2025 at 4:50 PM
Amazon opens a new 10,000-square-foot automated Whole Foods store in Pennsylvania partly staffed by robots; customers can scan and order items from the aisles (Matt Day/Bloomberg)
Main Link | Techmeme Permalink
Main Link | Techmeme Permalink
Reposted by Moises Jafet
Really pleased that the Spanish version of 'How Learning Happens' is finally coming out.
@paulkirschner.bsky.social @olicav.bsky.social @akaleditor.bsky.social
akal.com/libro/como-s...
@paulkirschner.bsky.social @olicav.bsky.social @akaleditor.bsky.social
akal.com/libro/como-s...
November 4, 2025 at 6:55 PM
Really pleased that the Spanish version of 'How Learning Happens' is finally coming out.
@paulkirschner.bsky.social @olicav.bsky.social @akaleditor.bsky.social
akal.com/libro/como-s...
@paulkirschner.bsky.social @olicav.bsky.social @akaleditor.bsky.social
akal.com/libro/como-s...
"Stability AI, whose directors include the Oscar-winning film-maker behind Avatar, James Cameron, successfully resisted a claim from Getty Images that it had infringed the international photo agency’s copyright." www.theguardian.com/media/2025/n...
AI firm wins high court ruling after photo agency’s copyright claim
Ruling in case brought by Getty Images against Stability AI is seen as a blow to copyright owners
www.theguardian.com
November 4, 2025 at 2:43 PM
"Stability AI, whose directors include the Oscar-winning film-maker behind Avatar, James Cameron, successfully resisted a claim from Getty Images that it had infringed the international photo agency’s copyright." www.theguardian.com/media/2025/n...
"The “Information” sector—which includes software programmers and tech workers most directly involved with AI—had the smallest decline in job openings. The largest drops came in manufacturing, construction, and energy extraction"
fortune.com/2025/10/31/c...
fortune.com/2025/10/31/c...
Since ChatGPT launched, job openings are down 30% while the stock market is up 70%. One economist says the true culprit isn’t AI, but monetary policy | Fortune
The relationship between job openings and stock market performance has been called “the scariest chart in the world.”
fortune.com
November 3, 2025 at 6:10 AM
"The “Information” sector—which includes software programmers and tech workers most directly involved with AI—had the smallest decline in job openings. The largest drops came in manufacturing, construction, and energy extraction"
fortune.com/2025/10/31/c...
fortune.com/2025/10/31/c...
"“AI accelerates output, but can’t replace original thought. The future belongs to those who know when to trust the machine—and when to trust themselves.” Microsoft Research: people who rely heavily on GenAI finish faster but think less deeply about the work itself."
www.forbes.com/sites/jasonw....
www.forbes.com/sites/jasonw....
5 Human Skills Beating AI—And Keeping You Irreplaceable
As AI reshapes the future of work, five skills—discernment, empathy, creativity, adaptability, and judgment—define the leaders who stay irreplaceable.
www.forbes.com
October 31, 2025 at 4:53 AM
"“AI accelerates output, but can’t replace original thought. The future belongs to those who know when to trust the machine—and when to trust themselves.” Microsoft Research: people who rely heavily on GenAI finish faster but think less deeply about the work itself."
www.forbes.com/sites/jasonw....
www.forbes.com/sites/jasonw....
"Galaxy XR is basically a Trojan horse. It's not only a fascinating new gadget; it's also a method for Google to show you what it wants to do with AI."
finance.yahoo.com/news/samsung...
finance.yahoo.com/news/samsung...
Samsung, Google unveil $1,799 device that aims to replace everything
Samsung and Google are pouring a lot of money into the future of spatial computing, and they aren't holding back. Two big tech firms unveiled the Galaxy XR this week. It costs $1,799 and runs on Andro...
finance.yahoo.com
October 31, 2025 at 4:26 AM
"Galaxy XR is basically a Trojan horse. It's not only a fascinating new gadget; it's also a method for Google to show you what it wants to do with AI."
finance.yahoo.com/news/samsung...
finance.yahoo.com/news/samsung...
Reposted by Moises Jafet
October 29, 2025 at 10:18 AM
Reposted by Moises Jafet
A display of pure power from Hurricane Melissa today.
Remarkable satellite imagery.
Remarkable satellite imagery.
October 28, 2025 at 1:22 AM
A display of pure power from Hurricane Melissa today.
Remarkable satellite imagery.
Remarkable satellite imagery.
"Company knowledge is powered by a version of GPT-5’s reasoning capabilities, so that it can draw comparisons from multiple sources, and as we’ve come to expect when it matters most, ChatGPT will also cite sources for improved trust."
www.techradar.com/pro/openai-i....
www.techradar.com/pro/openai-i....
OpenAI is connecting all company secrets to ChatGPT - all your work data and apps are now open
ChatGPT can now directly cite your "company knowledge"
www.techradar.com
October 26, 2025 at 10:33 AM
"Company knowledge is powered by a version of GPT-5’s reasoning capabilities, so that it can draw comparisons from multiple sources, and as we’ve come to expect when it matters most, ChatGPT will also cite sources for improved trust."
www.techradar.com/pro/openai-i....
www.techradar.com/pro/openai-i....
Llion Jones says he's 'absolutely sick' of transformers, the tech that powers every major AI model "The culprit, he argued, is the "immense amount of pressure" from investors demanding returns and researchers scrambling to stand out in an overcrowded field."
VentureBeat share.google/5Rhp1TSkfoJZ...
VentureBeat share.google/5Rhp1TSkfoJZ...
share.google
October 25, 2025 at 4:06 PM
Llion Jones says he's 'absolutely sick' of transformers, the tech that powers every major AI model "The culprit, he argued, is the "immense amount of pressure" from investors demanding returns and researchers scrambling to stand out in an overcrowded field."
VentureBeat share.google/5Rhp1TSkfoJZ...
VentureBeat share.google/5Rhp1TSkfoJZ...
"“If my junior analyst can get the same AI-generated insights as my senior strategist, why am I paying for expertise?”"
sloanreview.mit.edu/article/what...
sloanreview.mit.edu/article/what...
What’s Your Edge? Rethinking Expertise in the Age of AI
Don’t overpay for outdated expertise — or undervalue the human capabilities that AI can’t replace.
sloanreview.mit.edu
October 24, 2025 at 5:30 AM
"“If my junior analyst can get the same AI-generated insights as my senior strategist, why am I paying for expertise?”"
sloanreview.mit.edu/article/what...
sloanreview.mit.edu/article/what...
Reposted by Moises Jafet
Instagram said its teen accounts for users ages 13 to 17 will now only see content that would get a PG-13 rating, after California passed a law requiring social media companies to warn users of “profound” health risks.
Instagram limits teen accounts as California adds warnings to social media
Following a fresh wave of criticism, Instagram says it is rolling out new safety features for teen accounts and surveying parents.
www.washingtonpost.com
October 15, 2025 at 5:00 AM
Instagram said its teen accounts for users ages 13 to 17 will now only see content that would get a PG-13 rating, after California passed a law requiring social media companies to warn users of “profound” health risks.
Reposted by Moises Jafet
Geostationary satellites are leaking critical data, transmitting sensitive communications in the clear. With just $800 of consumer hardware, researchers intercepted military, telecom, retail, and infrastructure traffic. satcom.sysnet.ucsd.edu/docs/dontloo...
October 14, 2025 at 10:47 AM
Geostationary satellites are leaking critical data, transmitting sensitive communications in the clear. With just $800 of consumer hardware, researchers intercepted military, telecom, retail, and infrastructure traffic. satcom.sysnet.ucsd.edu/docs/dontloo...
Reposted by Moises Jafet
My department is hiring a theoretical physicist. I’m not on the search committee but happy to answer questions about the department. Come join our great group of people here. 🧪🔭
inspirehep.net/jobs/3064718
inspirehep.net/jobs/3064718
INSPIRE
inspirehep.net
October 14, 2025 at 8:50 PM
My department is hiring a theoretical physicist. I’m not on the search committee but happy to answer questions about the department. Come join our great group of people here. 🧪🔭
inspirehep.net/jobs/3064718
inspirehep.net/jobs/3064718
Reposted by Moises Jafet
Oh good, ChatGPT is getting "erotica for verified adults" later this year
October 14, 2025 at 5:05 PM
Oh good, ChatGPT is getting "erotica for verified adults" later this year
"One prevailing view is that AI startups should target industries that are heavily regulated or have other dynamics that make them less likely to choose general purpose AI services."
www.cnbc.com/2025/10/11/o....
www.cnbc.com/2025/10/11/o....
OpenAI's dominance is unlike anything Silicon Valley has ever seen
OpenAI's position at the heart of the AI boom, and its expansion up and down the stack, is putting the company in competition with a growing list of startups.
www.cnbc.com
October 13, 2025 at 4:35 AM
"One prevailing view is that AI startups should target industries that are heavily regulated or have other dynamics that make them less likely to choose general purpose AI services."
www.cnbc.com/2025/10/11/o....
www.cnbc.com/2025/10/11/o....
"Some people aren't mincing their words about it either, calling the deals "circular financing" or even "vendor financing" - where a company invests in or lends to its own customers so they can continue making purchases."
www.bbc.com/news/article....
www.bbc.com/news/article....
A tangled web of deals stokes AI bubble fears in Silicon Valley
Some are worried that the rapid rise in the value of AI tech companies may be a bubble waiting to burst.
www.bbc.com
October 12, 2025 at 12:06 AM
"Some people aren't mincing their words about it either, calling the deals "circular financing" or even "vendor financing" - where a company invests in or lends to its own customers so they can continue making purchases."
www.bbc.com/news/article....
www.bbc.com/news/article....
"The 2018 CLOUD Act gives the American government the authority to access data from anywhere so long as it's maintained in a server owned by a U.S. company. Canada and the U.S. have been negotiating a bilateral agreement on the CLOUD Act for 3 years, but none exists yet"
www.cbc.ca/news/busines....
www.cbc.ca/news/busines....
ANALYSIS | Why OpenAI wants to help Canada build homegrown artificial intelligence | CBC News
OpenAI wants to help Canada build a sovereign digital infrastructure for artificial intelligence, putting the country in a tough spot as it tries to distance itself from overreliance on U.S. tech comp...
www.cbc.ca
October 11, 2025 at 11:37 PM
"The 2018 CLOUD Act gives the American government the authority to access data from anywhere so long as it's maintained in a server owned by a U.S. company. Canada and the U.S. have been negotiating a bilateral agreement on the CLOUD Act for 3 years, but none exists yet"
www.cbc.ca/news/busines....
www.cbc.ca/news/busines....