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Tomás Aragón (托马斯·阿拉贡)

@tomasaragon.bsky.social
389 followers 991 following 216 posts

Impact Fellow & Adjunct Faculty, UC Berkeley Public Health Former State Health Officer & Director, California Dept Public Health. Former Health Officer & Director, Pop Health Div, SF Dept Public Health Blog: TEAMPublicHealth.substack.com

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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 29/09/2026
To be trustworthy, you must 1. have character, 2. be caring, 3. be competent, and 4. be consistent and reliable. www.nytimes.com/2026/09/29/t...
nytimes.com
OpenAI Ignored Employees’ Warnings About Safely Testing A.I. Models
Employees and security researchers said that they had cautioned the company on safely testing its A.I. models and strengthening its corporate infrastructure, but that OpenAI did not listen.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 21/09/2026
Isn't this just "gain of function research" without limits and control? "It is time to make them stop!" -- Ezra Klein www.youtube.com/watch?v=fjZ9...
youtube.com
Why Are We Sprinting Off the A.I. Cliff? | The Ezra Klein Show
YouTube video by The Ezra Klein Show
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 14/09/2026
This is an alarming (and depressing) article. www.nytimes.com/2026/09/14/h...
nytimes.com
Trump Administration Moves to Integrate A.I. Into Medical Care Despite Concerns
Federal projects are rolling out A.I. agents that offer therapy and prescribe medicine, raising concerns about safety and the influence of venture capital investors.
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Reposted by Tomás Aragón (托马斯·阿拉贡)
Tao Neuendorffer @taonf.bsky.social · 07/09/2026
The OMB Proposal will stop scientists from fighting against Trump's policies that fuel the climate crisis. We need the proposal permanently revoked. Visit the link to contact your MoC's and tell them to #RevoketheRule: tr.ee/QyLCZm #AmericanPolitics
Russell Vought’s OMB Rule Will Effectively Ban Climate Research
and anything that doesn't "demonstrably advance the President's policy priorities."
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 08/09/2026
Dr Richard Pan is a contemporary public health hero who models moral courage! He deserves our support! www.sfchronicle.com/politics/art...
sfchronicle.com
He wrote California’s landmark vaccine laws. Now he wants to take on RFK Jr. from Congress
The pediatrician and former state senator has long battled with the U.S. Health and Human Services secretary over California’s vaccine laws.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 02/09/2026
"In a world flooded with information, we make choices about what information to believe. Human limitations and biases can make it easy to fool ourselves. That is why we have worked with a team of experts to create Scientific Thinking for All: A Toolkit." scientificthinking.lawrencehallofscience.org
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 01/09/2026
Are you down with #Markdown? Future-proof text files for your personal notes, management files, and AI instructions. I cover: 1 Productivity & Knowledge Management 2 Universal document conversion 3 Skills for AI agents 4 Reproducible dynamic documents teampublichealth.substack.com/p/are-you-do...
teampublichealth.substack.com
Are you down with Markdown?
Future-proof text files for your personal notes, management files, and AI instructions
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 28/08/2026
I read Jonathan Haidt's "Anxious Generation" book when it was first published. I loved it! He took a public health precautionary principle approach to social media and youth mental health. This article highlights his contributions! www.nytimes.com/2026/08/27/s...
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 20/08/2026
Value-Focused Decisive Leadership (VFDL) is - leading with values, - ensuring decision quality, and - getting results in a way that inspires trust. teampublichealth.substack.com/t/decisive
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 19/08/2026
A decision is an irrevocable allocation of resources - time, energy, assets, money, people, & opportunity costs. Nothing is more important! Decisive leaders master awareness of complexity in content, context, & analysis. And start w cognitive biases & DQ check list teampublichealth.substack.com
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 11/08/2026
Leader Standard Work - Managing for daily improvement: Inspirations from Dr. Susan Ehrlich, CEO, San Francisco General Hospital teampublichealth.substack.com/p/leader-sta...
teampublichealth.substack.com
Leader Standard Work - Managing for daily improvement
Inspirations from Dr. Susan Ehrlich, CEO, San Francisco General Hospital
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 09/08/2026
So true ... "Fauci’s diaries show he changed his mind often. That’s what scientists are supposed to do. Public health experts need to be allowed to admit when they’re wrong — and share with the public what they are learning." www.ms.now/opinion/fauc...
ms.now
Opinion | Fauci’s diaries show he changed his mind often. That’s what scientists are supposed to do.
Ann Keller: Public health experts need to be allowed to admit when they’re wrong — and share with the public what they are learning.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 09/08/2026
"Seeking to Prosecute Fauci Is Disgraceful — The Senate committee's actions are legally flawed and set a dangerous precedent" www.medpagetoday.com/opinion/the-...
medpagetoday.com
Opinion | Seeking to Prosecute Fauci Is Disgraceful
The Senate committee's actions are legally flawed and set a dangerous precedent
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 08/08/2026
Brilliant interview of decision expert @annieduke.com. - Luck vs. decision quality - Decisions under uncertainty - Resulting and present vs. future self - Loss aversion, status quo bias, quitting - Making implicit models explicit - Decision volume and game selection www.youtube.com/watch?v=Rttp...
youtube.com
How to Get Lucky, Solved
YouTube video by Mark Manson
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 06/08/2026
If you read my Substack blog (#TEAMpublichealth) you know I promote Stoic philosophy for leadership character development. If you are curious about Stoicism, Oprah Winfrey just posted a great interview on this topic. www.youtube.com/watch?v=Fiua...
youtube.com
Is Stoicism the Secret to a Good Life?
YouTube video by Oprah
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 14/07/2026
teampublichealth.substack.com/p/stoic-phil...
teampublichealth.substack.com
Stoic philosophy (Stoicism) for health leaders
A leader's antidote to today's cruelty, corruption, and cult-like ideologies
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 14/07/2026
The science and practice of Stoic Philosophy (#Stoicism) in one infographic. To learn more visit teampublichealth.substack.com/p/public-hea...
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 03/07/2026
The 2026 Tanner Lecture on Human Value at Oxford University. From Yuval Noah Harari, "AI bureaucrats, AI religions, and AI boyfriends: What happens when a non-human intelligence hack the operating system of civilization" Absolutely worth watching! www.youtube.com/watch?v=hBtV...
youtube.com
AI has hacked the code of human civilization | Yuval Noah Harari
YouTube video by Yuval Noah Harari
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 28/06/2026
I was inspired by Cohort 6 of the ASTHO Leadership Institute. I had the privilege to conduct a workshop on Value-Focused Decisive Leadership (VFDL) on June 25, 2026, in Washington DC. My slides are handouts are available at teampublichealth.substack.com/p/decision-i...
teampublichealth.substack.com
Decision Intelligence 4 Health (di4h)
fyi … See TEAM Public Health articles on being decisive.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 23/06/2026
"The Heart of Access was made possible by the crucial partnerships formed between the San Francisco Department of Public Health, community organizations, and academic institutions during the pandemic. " heartofaccessfilm.org
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Reposted by Tomás Aragón (托马斯·阿拉贡)
Kamala Harris @kamalaharris.com · 10/06/2026
Congratulations to Xavier Becerra. I am excited to offer him all the support I can as he sets out to become our state’s next governor, and I look forward to standing with him as California makes history by electing our first Latino governor in 150 years.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 09/06/2026
"Moderate drinking increases the risk of early death and diseases such as cancer, heart disease and liver disease, and provides no net positive health benefit, according to the study published in the Journal of Studies on Alcohol and Drugs." www.washingtonpost.com/health/2026/...
washingtonpost.com
What a study at odds with Trump officials’ health guidance found on alcohol limits
The federally commissioned report was published in the Journal of Studies on Alcohol and Drugs.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 07/06/2026
Scott Pelley: What Has Happened to ‘60 Minutes’ Is a Tragedy | The Interview --- Very moving. CBS staff were traumatized. www.youtube.com/watch?v=ePqd...
youtube.com
Scott Pelley on His Firing and the ‘Massacre’ at ‘60 Minutes’ | The Interview
YouTube video by The Interview
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Reposted by Tomás Aragón (托马斯·阿拉贡)
NPR @npr.org · 06/06/2026
Former Health and Human Services Secretary Xavier Becerra has clinched the top spot on California's ballot for governor. With millions of ballots still to be counted, his November challenger is unknown. n.pr/4x2DMB8
n.pr
Democrat Xavier Becerra wins the top spot in November's race for California governor
Former Health and Human Services Secretary Xavier Becerra has clinched the top spot on California's ballot for governor. With millions of ballots still to be counted, his November challenger is unknown.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 05/06/2026
www.washingtonpost.com/wellness/202...
washingtonpost.com
The surprising science-backed reason being in nature makes you feel good
A new study suggests spending time in nature may boost body appreciation, self-compassion and overall life satisfaction.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 05/06/2026
www.universityofcalifornia.edu/news/10-ways...
universityofcalifornia.edu
10 ways to build a healthier relationship with yourself and others
Practical steps for building a happier life by improving the way we relate to ourselves and others are at the heart of a UC San Diego course launched by psychologist Karen Dobkins to help students pra...
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 04/06/2026
Classic hindsight bias: Excerpt: In retrospect she wishes her husband hadn’t run for a second term. “As I look back,” ... “would I want to put Joe through the hurt and the pain that we felt during that time? Never. Never. I mean, it was so hurtful.” www.wsj.com/opinion/jill...
wsj.com
Opinion | Now Jill Biden Tells Us
She wanted Joe to run again in 2024 no matter his growing infirmities.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 03/06/2026
Get webinar slides for "Using AI to Strengthen (not replace) Public Health Thinking: 'Effort is the Algorithm' to improve human capabilities" #ailiteracy #teampublichealth teampublichealth.substack.com/p/using-ai-t...
teampublichealth.substack.com
Using AI to Strengthen (not replace) Public Health Thinking
“Effort is the Algorithm” to improve human capabilities
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 01/06/2026
No mystery! Character. Caring. Competent. Consistent. In other words trustworthy and Xperienced. Xavier for Governor! www.latimes.com/california/s...
latimes.com
The mystery behind Becerra leapfrogging over his rivals in California's governor's race
Xavier Becerra was polling at around 4% in numerous polls taken in February, March and early April. Then, he surged.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 02/05/2026
When you hear a SIREN you pause to think. The SIREN Checklist helps you detect opportunities to improve Decision Quality (DQ). Remember, "Life is a sum of all your choices." — Albert Camus To learn more visit: teampublichealth.substack.com/p/the-groan-...
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 01/05/2026
Research priorities for improved pandemic and epidemic intelligence (The Lancet Global Health): "to strengthen pandemic and epidemic intelligence globally through Better Data, Better Analytics, and Better Decisions." www.thelancet.com/journals/lan...
thelancet.com
Research priorities for improved pandemic and epidemic intelligence
Pandemic and epidemic intelligence integrates surveillance data with contextual knowledge to assess health risks and inform public health decisions. Although investments in surveillance and public hea...
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 28/04/2026
Guidance for using modeling for immunization decision-making 2026, Decision-making, English, Global/multi-country, Methodological guidance/tool, Modelling, Prioritization & optimization, World Health Organization immunizationeconomics.org/recent-activ...
immunizationeconomics.org
Guidance for using modelling for immunization decision-making
Visit the post for more.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 28/04/2026
"Life is a sum of all your choices." —Albert Camus Decision Intelligence 4 Health (di4h) - Updated infographic (below) and 4-page cheatsheet here: docs.google.com/document/d/1...
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 27/04/2026
What is a Decision? Lecture 1 opens with the decision-making literature, from rational choice theory, game theory and decision theory to cognitive bias, the impact of neuroscience and the appraisal of emotional factors in rational decision-making. tannerlectures.berkeley.edu/christopher-...
tannerlectures.berkeley.edu
Christopher Clark - Tanner Lectures
Regius Professor of History University of Cambridge About these lectures The Moment of Decision Lecture I – What is a decision? Monday, May 4, 2026 4:10 pm – 6:15 pm Banatao Auditorium, Sutardja Dai H...
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 23/04/2026
Forgiveness - a deliberate decision - "may be more than a moral ideal. ... researchers are asking whether forgiveness can be taught at scale ... as a public health strategy that could improve the emotional lives of communities or even populations." www.washingtonpost.com/health/2026/...
washingtonpost.com
How to let go of grudges — and why it could be good for your health
Some scientists say training people to practice forgiveness could be a powerful public health tool.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 20/04/2026
Leading Public Health in Turbulent Times: Public Health Week — UC Davis Health Department of Public Health Sciences #CharacterMatters #PublicHealthWeek #LeadershipMatters teampublichealth.substack.com/p/leading-pu...
teampublichealth.substack.com
Leading Public Health in Turbulent Times
Public Health Week — UC Davis Health Department of Public Health Sciences
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 17/04/2026
Value-Focused Thinking and Decision-Making: A superpower for decisive, values-based leadership teampublichealth.substack.com/p/value-focu...
teampublichealth.substack.com
Value-Focused Thinking and Decision-Making
A superpower for decisive, values-based leadership
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 15/04/2026
"To be truly radical is to make hope possible, rather than despair convincing." --- Raymond Williams, Keywords. Inspiring quote that was shared today by Sir Michael Marmot at the UC Berkeley School of Public Health Faculty meeting.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 14/04/2026
"Mientras uno está vivo uno debe amar lo más que pueda". ... "No, no te puedo olvidar. No, no te puedo borrar. Tú me enseñaste a querer. Me enseñaste a bailar." www.youtube.com/watch?v=a1Fe...
youtube.com
BAD BUNNY - BAILE INoLVIDABLE (Video Oficial) | DeBÍ TiRAR MáS FOToS
YouTube video by Bad Bunny
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 14/04/2026
The surprising ways cannabis may affect the aging brain. As more states legalize recreational marijuana use, here’s what the research says about what cannabis is really doing to your brain. www.washingtonpost.com/wellness/202...
washingtonpost.com
The surprising ways cannabis may affect the aging brain
As more states legalize recreational marijuana use, here’s what the research says about what cannabis is really doing to your brain.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 10/04/2026
The inaugural John Swartzberg lecture series with CDPH Officer Dr. Erica Pan! www.youtube.com/watch?v=xoX5...
youtube.com
The inaugural John Swartzberg lecture series with CDPH Officer Dr. Erica Pan
YouTube video by UC Berkeley School of Public Health
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Reposted by Tomás Aragón (托马斯·阿拉贡)
Ryan Briggs @ryancbriggs.net · 01/04/2026
You guys @carlislerainey.bsky.social has a free textbook online and it seems really useful pos5747.github.io/notes/
A screenshot showing:
Introduction

These are notes for my class on probability models. In these notes, I walk through the concepts and computation that support modern probability modeling in political science using both maximum likelihood and Bayesian approaches.

The Goal

There are many excellent books on probability models. But I felt the need to write my own. Why? I saw three problems.

First, some classes assign a huge textbook. It might be possible for the strongest and most motivated students to become familiar with the range of topics covered in these textbook, but impossible to master. Instead, these textbooks seem like references, something you’re supposed to constantly be referring back to throughout your career. I know this because many of these books have instructors’ guides that suggest what should be covered in a single semester, what should be skipped, and how one might jump around. Instead, I want a book that students can work through beginning to end and master each idea.
Second, some classes assign a variety of sections from several books and a collection of articles. But then the story told in the readings isn’t coherent. The styles are changing, the author’s tastes are changing, and the notation is changing. Switching among authors can feel like whiplash when learning a difficult subject. Instead, I want a book that tells a continuous story with consistent style, tastes, and notation.
Third, some classes assign readings that support the lecture material, without exact alignment between the two. For better or worse, the content covered by the instructor in class feels like the most important material. Thus, I want a book that exactly aligns with the material I cover in class.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 24/03/2026
www.sfchronicle.com/opinion/open...
sfchronicle.com
Drinking red wine increases your risk of getting cancer. Warning labels should say so
OPINION: Alcohol, including red wine, is a Group 1 carcinogen, like radiation and tobacco. Warning labels on bottles should reflect that fact.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 24/03/2026
The "Groan Zone" of Group Decision Making -- Completed Facilitator's Workshop by "Community At Work". #TEAMPublicHealth #DecisionIntelligence teampublichealth.substack.com/p/the-groan-...
teampublichealth.substack.com
The "Groan Zone" of Group Decision Making
Completed Facilitator's Workshop by "Community At Work"
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 17/03/2026
From #YourLocalEpidemiologistCA leader --- Dr. Matt Willis : Pandemic anniversary reality check --- Why we shut down the Bay Area six years ago-- and why revising that history puts us at risk yourlocalepidemiologistca.substack.com/p/pandemic-a...
yourlocalepidemiologistca.substack.com
Pandemic anniversary reality check
Watch now | Why we shut down the Bay Area six years ago-- and why revising that history puts us at risk
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 16/03/2026
Extreme Heat Health Effects (infographic). Courtesy of #TEAMPublicHealth
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 16/03/2026
Are you Heat Ready, California? Heat is deadlier than any other weather hazard. Be prepared for extreme heat events and find resources to help you stay safe. heatready.ca.gov
heatready.ca.gov
Home | HeatReadyCA.com
Extreme Heat is a big risk for your health.Learn how to stay safe when extreme heat events happen.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 16/03/2026
www.latimes.com/california/s...
latimes.com
Epic Southern California heat wave poses deadly health threat
'This is effectively a full-on summer heatwave in March,' a climate scientist wrote on X.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 15/03/2026
"Kids don’t need to learn prompt engineering ... They need a holistic understanding of AI — ... how it works and how it affects learning. ... [how] AI supercharges their learning and when it stunts it. None of this requires more time on screens." www.washingtonpost.com/opinions/202...
washingtonpost.com
Opinion | Schools are teaching AI — and making a massive mistake
They should teach kids to have agency over the technology, not just how to use it.
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Tomás Aragón (托马斯·阿拉贡) @tomasaragon.bsky.social · 14/03/2026
"Teenagers Have Easy Access to Cannabis. Science Says It’s Bad for Them." New research shows even infrequent marijuana use during adolescence is linked to increased risk of mental-health disorders and poor performance in school www.wsj.com/health/welln...
wsj.com
Teenagers Have Easy Access to Cannabis. Science Says It’s Bad for Them.
New research shows even infrequent cannabis use during adolescence is linked to increased risk of mental-health disorders and poor academic performance.
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