Francisco T. Barbosa
@tuminha.bsky.social
Dentist + digital tech enthusiast. Founder of Periospot.com 🔬 | Exploring the power of AI & ML to build tools that empower people and enhance everyday tasks.
Celebrating 100 Repos on GitHub. 🎊🍾
November 17, 2025 at 9:56 AM
Celebrating 100 Repos on GitHub. 🎊🍾
Join us for a role combining digital marketing and scientific impact!
**Digital Marketing & Council Coordinator (Kloten, Zurich area)**
Be part of our expert team, managing web/SEO/GA4, social media (Sprout), council coordination, and webinars.
**Digital Marketing & Council Coordinator (Kloten, Zurich area)**
Be part of our expert team, managing web/SEO/GA4, social media (Sprout), council coordination, and webinars.
November 11, 2025 at 12:20 PM
Join us for a role combining digital marketing and scientific impact!
**Digital Marketing & Council Coordinator (Kloten, Zurich area)**
Be part of our expert team, managing web/SEO/GA4, social media (Sprout), council coordination, and webinars.
**Digital Marketing & Council Coordinator (Kloten, Zurich area)**
Be part of our expert team, managing web/SEO/GA4, social media (Sprout), council coordination, and webinars.
Tried to predict viral posts with machine learning on 5 years of my social media data.
The model failed spectacularly (ROC-AUC 0.62).
That failure taught me more about social media than any success could have.
Here's what 3,745 posts revealed
The model failed spectacularly (ROC-AUC 0.62).
That failure taught me more about social media than any success could have.
Here's what 3,745 posts revealed
November 3, 2025 at 3:00 AM
Tried to predict viral posts with machine learning on 5 years of my social media data.
The model failed spectacularly (ROC-AUC 0.62).
That failure taught me more about social media than any success could have.
Here's what 3,745 posts revealed
The model failed spectacularly (ROC-AUC 0.62).
That failure taught me more about social media than any success could have.
Here's what 3,745 posts revealed
I built an ML model to predict viral posts.
It “failed”… and then confessed.
Pure content → AUC 0.62
+ Distribution (platform/profile) → AUC 0.77
The 70/30 rule of virality:
~70% engagement = distribution
~30% = creative
Write-up + code: open.substack.com/pub/tuminha...
It “failed”… and then confessed.
Pure content → AUC 0.62
+ Distribution (platform/profile) → AUC 0.77
The 70/30 rule of virality:
~70% engagement = distribution
~30% = creative
Write-up + code: open.substack.com/pub/tuminha...
The Perfect Crime of Viral Content: What Ilya Sutskever’s Detective Tale Taught Me About Social Media
3,745 posts, temporal validation, and the rigged game of reach behind engagement.
tuminha.substack.com
November 2, 2025 at 2:00 PM
I built an ML model to predict viral posts.
It “failed”… and then confessed.
Pure content → AUC 0.62
+ Distribution (platform/profile) → AUC 0.77
The 70/30 rule of virality:
~70% engagement = distribution
~30% = creative
Write-up + code: open.substack.com/pub/tuminha...
It “failed”… and then confessed.
Pure content → AUC 0.62
+ Distribution (platform/profile) → AUC 0.77
The 70/30 rule of virality:
~70% engagement = distribution
~30% = creative
Write-up + code: open.substack.com/pub/tuminha...
I thought I was upgraded on GitHub, but it’s just Halloween season celebration colors.
November 1, 2025 at 8:55 AM
I thought I was upgraded on GitHub, but it’s just Halloween season celebration colors.
She's a 10, but she uses random_state=42
September 19, 2025 at 2:17 PM
She's a 10, but she uses random_state=42
I would sh** my pants if I were there.
September 5, 2025 at 9:30 AM
I would sh** my pants if I were there.
Doesn't matter how many times I see this; it hits me hard every time.
September 4, 2025 at 11:00 PM
Doesn't matter how many times I see this; it hits me hard every time.
I don't know how I could live without @PerplexityComet
Thanks, @RussellKirkDDS, for the codes!
Thanks, @RussellKirkDDS, for the codes!
September 4, 2025 at 3:04 PM
I don't know how I could live without @PerplexityComet
Thanks, @RussellKirkDDS, for the codes!
Thanks, @RussellKirkDDS, for the codes!
I was not aware of this tip to use Grok for proofreading on X 🤯
September 2, 2025 at 1:00 PM
I was not aware of this tip to use Grok for proofreading on X 🤯
Going back to KaVo handpiece after a week with the cheap Amazon turbine
September 1, 2025 at 12:30 PM
Going back to KaVo handpiece after a week with the cheap Amazon turbine
Is this the future?
September 1, 2025 at 2:00 AM
Is this the future?
Oral surgeon friend told me he's going alone to an ortho congress
August 31, 2025 at 3:30 PM
Oral surgeon friend told me he's going alone to an ortho congress
Dental pioneers used to extract teeth with pliers and whiskey. Now they announce completing their 'Advanced Instagram Marketing for Dentists' course using this photo.
August 31, 2025 at 1:00 PM
Dental pioneers used to extract teeth with pliers and whiskey. Now they announce completing their 'Advanced Instagram Marketing for Dentists' course using this photo.
With GPT5's memory enabled, this prompt becomes your personal executive coach.
Copy this exactly:
Copy this exactly:
August 31, 2025 at 12:00 AM
With GPT5's memory enabled, this prompt becomes your personal executive coach.
Copy this exactly:
Copy this exactly:
When your friend shows you their new dental practice website they designed themselves
August 30, 2025 at 9:00 PM
When your friend shows you their new dental practice website they designed themselves
We open dozens of chats with GPT… then lose track of the important ones.
My hack: I drop a 🟡 emoji in the chat title so I can instantly spot “work-in-progress” threads.
Would be amazing if @OpenAI added pins, colors, or tags (like Apple’s folder labels) to keep conversations organized.
My hack: I drop a 🟡 emoji in the chat title so I can instantly spot “work-in-progress” threads.
Would be amazing if @OpenAI added pins, colors, or tags (like Apple’s folder labels) to keep conversations organized.
August 28, 2025 at 10:27 AM
We open dozens of chats with GPT… then lose track of the important ones.
My hack: I drop a 🟡 emoji in the chat title so I can instantly spot “work-in-progress” threads.
Would be amazing if @OpenAI added pins, colors, or tags (like Apple’s folder labels) to keep conversations organized.
My hack: I drop a 🟡 emoji in the chat title so I can instantly spot “work-in-progress” threads.
Would be amazing if @OpenAI added pins, colors, or tags (like Apple’s folder labels) to keep conversations organized.
“Self-education is, I believe, the only kind of education there is.”
— Isaac Asimov —
— Isaac Asimov —
August 25, 2025 at 12:30 PM
“Self-education is, I believe, the only kind of education there is.”
— Isaac Asimov —
— Isaac Asimov —
Many of us die at thirty and are buried at eighty.
August 25, 2025 at 2:00 AM
Many of us die at thirty and are buried at eighty.
I need to keep pushing. I should commit to at least one commit per day on my GitHub.
August 17, 2025 at 1:00 PM
I need to keep pushing. I should commit to at least one commit per day on my GitHub.
@lovable_dev final boss test
August 16, 2025 at 4:17 PM
@lovable_dev final boss test
We lost access to FOR’s old X account, so we’re rebooting.
Follow the new official handle @Global_FOR_org for evidence‑based implant dentistry, digital workflows, and education.
A RT helps the community find us again. 🙏
Follow the new official handle @Global_FOR_org for evidence‑based implant dentistry, digital workflows, and education.
A RT helps the community find us again. 🙏
August 13, 2025 at 12:59 PM
We lost access to FOR’s old X account, so we’re rebooting.
Follow the new official handle @Global_FOR_org for evidence‑based implant dentistry, digital workflows, and education.
A RT helps the community find us again. 🙏
Follow the new official handle @Global_FOR_org for evidence‑based implant dentistry, digital workflows, and education.
A RT helps the community find us again. 🙏