
Advisor, entrepreneur, investor, and non-profit Board member at @TexasLyceum & @Geekdom; retired host of @CyberTalkRadio.
San Antonio, Tx
Joined January 2009
- Tweets10.5K
- Following2.7K
- Followers4.7K
- Likes10.5K
Bret Piatt retweeted
The biggest stories don’t always make the news. 🤔
Susan and I gave $6.25 billion to help 25 million American children build brighter futures.
These handwritten thank-you notes mean more than any headline ever could.
25 million children. 25 million futures. Endless possibilities. ❤️🇺🇸
Bret Piatt retweeted
Who needs AGI with Insta-Carmack
When I was writing Unreal Engine 1, my time was divided as follows:
- Around 30% went to seriously deep coding on hard problems: assembly language texture mappers, C++ BSP trees, data persistence, object oriented systems design, and networking.
- Around 70% was just typing and refactoring large bodies of code needed for a complete engine feature set. This was not hard, and while I was doing it my mind was mostly on the deeper coding topics, thinking and planning for what's next. It didn't feel much different from vibe coding today, except that it was just me typing code on an IBM Model M keyboard rather than prompting it and reviewing the results.
So, it has always seemed perfectly logical that we would rely on AI for that 70%, once the AI could do it with a similar quality standard as we could, which has never been perfection. It came as no surprise that, after a few years of AI model evolution, it was able to take the reigns on that 70% and free up programmers' time for more valuable tasks.
What's more of a surprise is the emergence of AI as a sort of insta-Carmack able to solve hard technical problems quite cleverly and often cleanly, and that it's able to reason about and work in complex 3D scenes both by operating the tools and by directly understanding the raw data files.
I abandoned assembly language in 1998 when out-of-order CPUs made much simpler C/C++ code faster, and never I missed it. If prompting through architectural documents, concept art, and design plans can transcend typing code and tweaking vertices, that will enable developers to spend their time on higher-level, higher value technical and creative tasks.
What matters is the end product, whether it's a game or an engine. Anything developers can do to try out more ideas and make better software and games faster is a win for everyone.
Bret Piatt retweeted
$2B in portfolio exits so far this year. Exciting times for our small venture firm.
Bret Piatt retweeted
Workday acquired C1 today. Our most valuable exited company to date. Huge win for all. Thank you Paul & Alex.
Bret Piatt retweeted
San Antonio might be one of the most underrated cities in America.
In town to call UTSA vs. South Florida tonight on ESPN & been blown away. Heard these roadrunner fans are next level
What an awesome city. The people, the food, the atmosphere…just incredibly impressed!
Bret Piatt retweeted
The computer revolution wiped out 2.8 million clerical jobs: typists, data entry keyers, file clerks, secretaries.
It also created nearly 4 million jobs in computer occupations that barely existed in 1990.
My @nytopinion Chart: nytimes.com/2026/10/02/opini…
Bret Piatt retweeted
Two thoughts from Larry Page
"Almost everyone who has had an idea that's somewhat revolutionary or wildly successful was first told they're insane."
"I find that knowing what's really happening is more important than trying to control people."
Bret Piatt retweeted
JEV actually doesn't even run deterministically
Exact same prompts give you different probabilities when you run it multiple times
The ORDER of the choices DRASTICALLY changes the output probs
I am more and more confused by the their "no-hallucination" claim
Guys it’s a misconception that Jev can’t hallucinate
It’s a non-generative LM ie it models probabilities of things given language as context
The guarantee is the type-safety, and that answers are deterministic - ie no stochastic sampling. The deterministic answers can still be confidently wrong!
It can still hallucinate if the training data on the topic was under cooked
Bret Piatt retweeted
TBC would be excited and honored to build this massive infrastructure project.
Because Loop/Hyperloop is express (i.e. no intermediate stops), one could travel from an Austin parking lot to a favorite San Antonio restaurant in ~30 min. As long as they both have Loop stations!
Replying to @elonmusk
Boring Company is working on a simple, precursor Hyperloop tunnel between Austin and San Antonio (>200 mph).
Due to traffic congestion, that journey can currently take up to 2.5 hours. @BoringCompany can reduce that to a consistent <30 mins.
Bret Piatt retweeted
The complete Jev Report:
docs.google.com/document/d/1…
My AI reads everyone in AI community here on X to build these.
Unless you are using my lists, you can't do this.
And even then, my database has four million posts in it so I have more data than you do to feed my agent.
Bret Piatt retweeted
I'm hosting a hardware happy hour in Austin next Thursday — DM me (or reply) for the Partiful.
Just did this same event in Hawthorne, and took over a local bar with 81 hardware engineers/operators.
Attendees will once again receive free:
‣ food
‣ drink
‣ camaraderie
Bret Piatt retweeted
it's been < 36 hours
we've jev-ed 140k off the waitlist (our platform team trying hard to get EVERYONE off ASAP)
I've been told we're 9th biggest launch video of the year (and in very good company)
SO many cool demos! evals! ideas!
and still the most important number is going to be how much true automation y'all deploy!
Bret Piatt retweeted
Yesterday I was in Austin, TX to announce the Airbnb Housing Accelerator, a $250 million commitment to help get more homes built.
Airbnb started because of a housing problem. My roommate and I couldn’t afford our San Francisco rent, so we rented out airbeds in our apartment. Today, housing is unaffordable for millions of people around the world.
If you step back and ask why housing has become so expensive, the biggest problem is pretty simple: we don’t build enough of it. America is short more than five million homes, more than all the housing in New York City and Los Angeles combined. We build fewer homes today than we did in 1950, even though the population has doubled.
Airbnb has been part of the housing debate, and we understand why communities have concerns. Dedicated Airbnb listings are a small share of the housing supply—about 0.5% here in Austin and 0.3% across the U.S. Restricting short-term rentals is an understandable response, but the evidence shows it doesn’t address the underlying problem.
New York City effectively banned Airbnb, and rents have risen about 30% since then. Austin took a different approach and passed reforms that made it easier to build more housing. Rents there are down 18%. Every city is different, but Austin is a clear success story.
We believe building more homes is essential to making housing more affordable. So we asked ourselves: what can Airbnb can do to help? We found a few places where we can.
Today, around 750,000 homes in the U.S. are ready to break ground, but are stuck because they can’t get the final piece of financing. That’s where we can help.
We’re doing four things:
1. Putting $250 million behind housing projects that unlock $5 billion in development.
2. Supporting local housing advocates working to modernize zoning, speed up permitting, simplify building codes and reduce unnecessary costs.
3. Creating a $5 million Housing Innovation Prize for technologies that can make homes faster and cheaper to build.
4. Launching the Airbnb City Index to make it easier to see which cities are building housing, becoming more affordable and adopting policies that work.
Our first project is in Austin. We’re investing $6.4 million to help build 201 affordable apartments in St. John, a neighborhood where the land has sat empty for nearly 20 years. The community fought to turn this lot into affordable housing and won. But construction stalled for nearly five years because the developer was a few million dollars short. Airbnb came and played a small part to unlock this project.
None of these Austin apartments will ever be on Airbnb. Short-term rentals aren’t permitted. We’re investing anyway, because the goal is simple: help build more housing.
We’re starting in the U.S. because it’s the market we know best. I want to prove this works here before taking it further. But housing affordability is a global problem, and I hope we can eventually take what we learn here and apply it globally.
This is new for us. We’ll get some things wrong. And $250 million won’t close a five-million-home gap on its own.
I know there will be skepticism about this, and that's okay. Airbnb only works if communities trust us and feel good about our presence in them. We can’t ask people for that trust. We have to earn it. The best way to do that is to help solve problems in the communities where we operate.
That’s what the Housing Accelerator is about.
Brian
Bret Piatt retweeted
China published the most uncomfortable paper on vibe coding.
ETH Zurich tested 100 developers in a controlled, commercial-grade vibe coding environment to see who actually succeeds.
The findings are brutal.
The researchers tracked computer science achievement, written communication skills, and general cognitive reasoning.
They wanted to see what actually predicts vibe coding proficiency when you never touch a line of source code yourself.
Two major predictors emerged.
Written communication proficiency mattered. The ability to structure thoughts and articulate intent unambiguously in text directly impacts what the AI builds.
But that wasn't even the main takeaway.
Computer science achievement was a massive, dominant predictor of success.
Even when researchers controlled for general intelligence and reasoning skills, CS background still heavily dictated who built working software and who completely crashed.
In fact, CS knowledge contributed roughly twice the unique predictive variance of writing skills alone.
Why? Because vibe coding isn't about writing code. It’s about debugging logic.
When an AI agent builds a complex application and quietly breaks an edge case under the hood, a non-technical user looks at the glowing UI and assumes it works.
They don't know what questions to ask. They don't know what logic to challenge. They lack the mental models to recognize architectural catastrophe.
You can prompt your way past syntax.
You cannot prompt your way past a fundamental lack of engineering intuition.
The hype told us that learning to code is dead because language is all you need.
The data just proved the opposite.
To truly master the vibe, you still need to understand how the machine thinks.
Bret Piatt retweeted
hey san antonio leaders...where you at? austin, dallas, houston will be part of big release tomorrow. please join the future. @Mayor_GOJ @COSAGOV
Bret Piatt retweeted
Regret the tone of my post on data centers yesterday.
What I should have said:
There were reasonable concerns about data centers 18ish months ago: water, taxes, jobs, electricity prices, the environment and what they would do to small towns. Well-structured data center projects have largely addressed these concerns today and we should be celebrating this.
On balance, data centers are awesome for America in every way.
On water: U.S. data centers use a fraction of what golf courses use. A lot of the numbers from 18 months ago were off by over 1000x. Newer data centers use closed-loop systems or recycled water. Should be required by every town approving a data center project.
On taxes: looking only at sales-tax exemptions, as Ronan Farrow did, is the wrong way to evaluate this. Data centers pay significant property taxes. Loudoun County, which is the wealthiest county in America, now collects on the order of $1 billion a year from data centers. In Quincy, WA, data centers are more than half the property-tax roll. Over time, property taxes can go to zero while government spending increases in these towns.
On jobs: this has been unambiguously awesome for blue collar Americans. Demand for electricians, plumbers, welders, HVAC techs, and contractors has gone vertical, and it is not a one-time construction job. These buildings get upgraded and expanded over time. That is why the building trades are fighting for them, and why some unions are now treating opposition to data centers as a reason not to endorse politicians.
On power: the original fear was that households would pay for the incremental electricity demand in the form of higher prices. That is why the ratepayer-protection deals and the new large-load tariffs exist. The right structure is: the data center brings or pays for new generation and signs a contract long enough that existing customers are protected. Where that is happening, utilities are cutting or freezing residential rates and saying so on the record. Where it is not, people are right to object. Electricity prices are going down *today* in a number of large states because of data centers.
On the environment: data centers overwhelming use natural gas today, which is the cleanest power source outside of nuclear, solar and wind. And the companies that are building the data centers are committed to carbon neutrality such that an equivalent amount of solar will likely be built. Maybe more importantly, the data centers need batteries to function effectively and these batteries can also sell energy back into the grid (which recently prevented blackouts in Texas). Over time, data centers will run on solar plus batteries.
On the towns: Poverty in Quincy, WA fell from 29% to 6%. Data center taxes paid for a new high school, a hospital, a library, police and fire stations. This is happening in many left for dead former mill and farm towns that had no other bidder for the land.
Data centers are actually reindustrializing parts of America and creating the kind of working-class jobs both parties have spent decades claiming to support. That should not be a partisan issue. Data centers can and should be awesome for America and they increasingly, overwhelmingly are. Supporting the outsourcing of data centers to China will likely age just as well as support for the outsourcing of high quality, blue collar manufacturing jobs to China has aged.
When the facts change, I change my mind. I hope that reasonable people who had good faith reasons to oppose data centers at least consider updating their beliefs given the change in the facts over the last 18 months. This really matters for America.
I will say I also think the idea of making data centers beautiful is a good one that has yet to be implemented. Data centers should be just as beautiful as Grand Central Station. We can learn a lot from the railroad buildout. Neoclassical revival ftw.
Might write up open-weight AI tomorrow as this is equally essential to America.
Bret Piatt retweeted
This is a pretty big shift in U.S. cyber policy.
The White House is setting up a program that would let private cybersecurity companies conduct government-authorized operations against foreign cybercriminal groups, including surveillance and disruption of their infrastructure.
Not exactly “hack back,” but definitely a major expansion of the private sector’s role in offensive cyber operations.
whitehouse.gov/presidential-…
Bret Piatt retweeted
SpaceX President and COO Gwynne Shotwell and her husband have announced that they are donating ~$325 million of SpaceX stock to Trump Accounts for more than two million children across the U.S.
Every one of those kids will now have a direct stake in a company whose mission is the most ambitious in human history: to make life multi-plantary 🚀
My husband and I are honored and thrilled to participate in the Invest America program and gift a share of our SpaceX stock to a Trump Account for each of more than two million children across our great nation.
Every American child under 18 can benefit from having a Trump Account, but our gift specifically goes to the Accounts of children (ages 11-17) that live in areas with lower average household incomes with a bit more emphasis for those that live near our central Texas home.
We have been fortunate in our careers and hope this gift encourages the next generation to continue the journey of enabling humanity to live and fly amongst the stars.
A huge thanks to all that worked to bring this incredible program to life.
Bret Piatt retweeted
Gov. Abbott today announced Toyota's $3.6 billion expansion in San Antonio.
The new vehicle assembly line will double Toyota's manufacturing footprint and create 2,000 new jobs.
Texas is home to a strong workforce and this investment reflects our state's unmatched opportunity.
Bret Piatt retweeted
Today, on America’s 250th birthday, Susan and I are celebrating by giving $250 each to the first 25 million qualifying American children who sign up for their @InvestAmerica24 @TrumpAccounts.
This makes every child a shareholder in the greatest prosperity-creating engine the world has ever known — American capitalism. Through this public-private partnership, we’re giving the next generation a real stake in our economy and a path to the American Dream: education, a first home, starting a business, and building lasting wealth.
It unites us all in hope and optimism for every child’s future.
Happy 250th Birthday, America! 🇺🇸
trumpaccounts.gov/































