Marcelo Calbucci
@calbucci.com
Author of "The PRFAQ Framework" (www.theprfaq.com). 18yrs of startups in Seattle & London, MSFT, Amazon. Runner. Cook. Geek.
Tech, software, AI/ML, UX, product, innovation, startups, leadership.
📍 Seattle
🇧🇷🇺🇸
https://calbucci.com/link
Tech, software, AI/ML, UX, product, innovation, startups, leadership.
📍 Seattle
🇧🇷🇺🇸
https://calbucci.com/link
ChatGPT saved me from a USPTO scam. I was ready to respond to a message from the USPTO when I pasted it into ChatGPT to ensure I answered it the right way.
November 25, 2025 at 11:39 PM
ChatGPT saved me from a USPTO scam. I was ready to respond to a message from the USPTO when I pasted it into ChatGPT to ensure I answered it the right way.
This comment on the “South Korea Is Over” video on YouTube is brutally honest and clearly articulates the sentiment of a generation. I wish that other nations would take note and act. It's not too late for the US. We have to ensure women don't feel hopeless and helpless about the future.
November 23, 2025 at 4:17 PM
This comment on the “South Korea Is Over” video on YouTube is brutally honest and clearly articulates the sentiment of a generation. I wish that other nations would take note and act. It's not too late for the US. We have to ensure women don't feel hopeless and helpless about the future.
That’s why I’m so optimistic about the future of software engineers. One vibe coder created work for three software engineers for at least three months!
November 21, 2025 at 4:51 AM
That’s why I’m so optimistic about the future of software engineers. One vibe coder created work for three software engineers for at least three months!
Like Mariah Carey's flawless yearly cycle.
November 20, 2025 at 4:53 PM
Like Mariah Carey's flawless yearly cycle.
This is a first from Claude. It told me it'll take 21-29 hours to implement this feature. I don't buy it. I think it'll be 4-6h. I'll report back EOD.
November 13, 2025 at 7:30 PM
This is a first from Claude. It told me it'll take 21-29 hours to implement this feature. I don't buy it. I think it'll be 4-6h. I'll report back EOD.
After 11 months, I sold nearly 1,000 copies of my book, and I have only 21 ratings on Amazon. It's easier to get someone to buy the book than to get them to leave a rating.
November 12, 2025 at 5:51 PM
After 11 months, I sold nearly 1,000 copies of my book, and I have only 21 ratings on Amazon. It's easier to get someone to buy the book than to get them to leave a rating.
Think of a big company as a city full of diverse neighborhoods. A person who lives in one neighborhood will have a unique experience from someone in another. One person on one team at a big tech company doesn't represent the full spectrum of experiences and responsibilities for that role.
November 10, 2025 at 7:32 PM
Think of a big company as a city full of diverse neighborhoods. A person who lives in one neighborhood will have a unique experience from someone in another. One person on one team at a big tech company doesn't represent the full spectrum of experiences and responsibilities for that role.
I've been unable to log in to my Webflow account for a week now. I tried everything. It worked on Safari, but stopped working on Chrome (even on a new profile). ChatGPT gave me a bunch of suggestions, and this one, unexpectedly, worked! Posting it here in case it helps someone.
November 9, 2025 at 11:25 PM
I've been unable to log in to my Webflow account for a week now. I tried everything. It worked on Safari, but stopped working on Chrome (even on a new profile). ChatGPT gave me a bunch of suggestions, and this one, unexpectedly, worked! Posting it here in case it helps someone.
Is there a better sentence in a subject line than "no action required"?
November 4, 2025 at 6:29 PM
Is there a better sentence in a subject line than "no action required"?
14-mile run, 27 miles this week. Back in the game and accepting recommendations for a marathon in 2026.
Also, Kirkland feels like a movie set.
Also, Kirkland feels like a movie set.
November 2, 2025 at 10:09 PM
14-mile run, 27 miles this week. Back in the game and accepting recommendations for a marathon in 2026.
Also, Kirkland feels like a movie set.
Also, Kirkland feels like a movie set.
Today, I chose violence.
October 29, 2025 at 7:52 PM
Today, I chose violence.
Twitter toxicity level is off-the-charts.
(This is a reply to a tweet about Ubuntu/Rust)
(This is a reply to a tweet about Ubuntu/Rust)
October 24, 2025 at 4:58 PM
Twitter toxicity level is off-the-charts.
(This is a reply to a tweet about Ubuntu/Rust)
(This is a reply to a tweet about Ubuntu/Rust)
Fred Hutch, a leading cancer research and treatment center in Seattle, has stopped sponsoring H1-B visas for doctors, researchers, and healthcare professionals because of the $100,000 additional fee for this visa.
October 16, 2025 at 6:37 PM
Fred Hutch, a leading cancer research and treatment center in Seattle, has stopped sponsoring H1-B visas for doctors, researchers, and healthcare professionals because of the $100,000 additional fee for this visa.
Make no mistake, AI *will* transform work faster than previous technology advancements. The rumble you hear today about layoffs and the difficulty of white-collar workers to find jobs is explainable by the wave of economic turbulence we've been living through for the last five years. 👇
October 13, 2025 at 8:56 PM
Make no mistake, AI *will* transform work faster than previous technology advancements. The rumble you hear today about layoffs and the difficulty of white-collar workers to find jobs is explainable by the wave of economic turbulence we've been living through for the last five years. 👇
People building new tech products severely underestimate how long it takes for people and organizations to adopt new ways of doing things. It doesn't matter if it's 10X better; it still takes a long time for people to change.
October 9, 2025 at 6:43 PM
People building new tech products severely underestimate how long it takes for people and organizations to adopt new ways of doing things. It doesn't matter if it's 10X better; it still takes a long time for people to change.
About 8,000 new H1Bs are issued every year for people in the medical field (doctors, dentists, nurses, etc.). A $100K fee will make those visas inviable. Ask the UK what happens when you can't access global talent in healthcare.
September 22, 2025 at 4:46 PM
About 8,000 new H1Bs are issued every year for people in the medical field (doctors, dentists, nurses, etc.). A $100K fee will make those visas inviable. Ask the UK what happens when you can't access global talent in healthcare.
You know those random texts msgs? They are a scam! People fall for it, making it a profitable crime enterprise (search “Myanmar scam text”). My advice: have long conversations with them! Ask for photos! The goal is to drain their resources and increase their operational costs.
September 9, 2025 at 3:47 PM
You know those random texts msgs? They are a scam! People fall for it, making it a profitable crime enterprise (search “Myanmar scam text”). My advice: have long conversations with them! Ask for photos! The goal is to drain their resources and increase their operational costs.
I get LLMs hallucinating text. There is no truth database to check against. There is no excuse for LLMs to hallucinate code (packages, methods, properties, etc.). Not only they can find documentation about it, a lot of it is open source as well.
September 2, 2025 at 10:35 PM
I get LLMs hallucinating text. There is no truth database to check against. There is no excuse for LLMs to hallucinate code (packages, methods, properties, etc.). Not only they can find documentation about it, a lot of it is open source as well.
"The future is already here, it's just not evenly distributed."
July 2, 2025 at 2:50 PM
"The future is already here, it's just not evenly distributed."
You’ve been using LLMs wrong to help you with product strategy!
Sadly, too many “experts” out there (and even tools) will tell you how an LLM will write a PRFAQ for you. That's dumb! Yet, I didn't have an answer on how you must use it the *right* way… until now.
1/3
Sadly, too many “experts” out there (and even tools) will tell you how an LLM will write a PRFAQ for you. That's dumb! Yet, I didn't have an answer on how you must use it the *right* way… until now.
1/3
June 19, 2025 at 9:54 PM
You’ve been using LLMs wrong to help you with product strategy!
Sadly, too many “experts” out there (and even tools) will tell you how an LLM will write a PRFAQ for you. That's dumb! Yet, I didn't have an answer on how you must use it the *right* way… until now.
1/3
Sadly, too many “experts” out there (and even tools) will tell you how an LLM will write a PRFAQ for you. That's dumb! Yet, I didn't have an answer on how you must use it the *right* way… until now.
1/3
I give, Google Meet Gemini notes.
June 18, 2025 at 5:05 PM
I give, Google Meet Gemini notes.
It's interesting to see the rates (cold message on LinkedIn) from the perspective of supply-and-demand. I'm surprised that frontend developers are commanding the same rate as mobile developers b/c LLMs are so good with FE frameworks.
June 17, 2025 at 7:26 PM
It's interesting to see the rates (cold message on LinkedIn) from the perspective of supply-and-demand. I'm surprised that frontend developers are commanding the same rate as mobile developers b/c LLMs are so good with FE frameworks.
Interested in learning about PRFAQ and Working Backwards and don't have the time to read the book? Join our workshop this Thursday.
It'll be packed with insights on product discovery, strategy, writing with clarity, engaging your team, and more.
Register today:
👉 www.theprfaq.com/workshop
It'll be packed with insights on product discovery, strategy, writing with clarity, engaging your team, and more.
Register today:
👉 www.theprfaq.com/workshop
June 9, 2025 at 4:36 PM
Interested in learning about PRFAQ and Working Backwards and don't have the time to read the book? Join our workshop this Thursday.
It'll be packed with insights on product discovery, strategy, writing with clarity, engaging your team, and more.
Register today:
👉 www.theprfaq.com/workshop
It'll be packed with insights on product discovery, strategy, writing with clarity, engaging your team, and more.
Register today:
👉 www.theprfaq.com/workshop
Next week, I'll host the updated version of the PRFAQ & Working Backwards workshop for product managers and founders. Learn how to use the framework to convert a good into a great idea, start with your customer, think critically, and inspire action.
www.theprfaq.com/workshop
www.theprfaq.com/workshop
June 3, 2025 at 3:54 PM
Next week, I'll host the updated version of the PRFAQ & Working Backwards workshop for product managers and founders. Learn how to use the framework to convert a good into a great idea, start with your customer, think critically, and inspire action.
www.theprfaq.com/workshop
www.theprfaq.com/workshop
Are you PRFAQ & Working Backwards curious?
In two weeks, I'll be teaching how to use the Amazon battle-tested innovation framework to make better product and business decisions.
Check out: www.theprfaq.com/workshop
In two weeks, I'll be teaching how to use the Amazon battle-tested innovation framework to make better product and business decisions.
Check out: www.theprfaq.com/workshop
May 27, 2025 at 3:03 PM
Are you PRFAQ & Working Backwards curious?
In two weeks, I'll be teaching how to use the Amazon battle-tested innovation framework to make better product and business decisions.
Check out: www.theprfaq.com/workshop
In two weeks, I'll be teaching how to use the Amazon battle-tested innovation framework to make better product and business decisions.
Check out: www.theprfaq.com/workshop