AWS DevOps/Cloud Engineer
Joined November 2010
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Faith Tosin. retweeted
A retired NASA engineer who had worked on the Space Shuttle program for 25 years was hired by SpaceX at age 62. He described the first week as the most disorienting experience of his professional life.
At NASA, a design change required 3 meetings, 2 committees, a review board, and 6 to 18 months of documentation. At SpaceX, his new supervisor said "if it works, build it. If it doesn't, change it by Friday."
He sat at his desk after the first day and called his wife. He told her he felt like a man who had been swimming with ankle weights for 25 years and someone just cut them off. He could move. He could decide. He could build something in the morning and test it in the afternoon. The constraint that he had accepted as the nature of aerospace engineering turned out to be the nature of bureaucracy.
Within 6 months he had contributed to more design iterations than he had completed in his last 5 years at NASA. Not because he was working harder. Because the time between having an idea and testing the idea collapsed from months to hours. The same brain. The same knowledge. A different operating system.
He described a specific moment where he proposed a modification to a Raptor engine component. At NASA, the proposal would have entered a queue. At SpaceX, the modification was machined by the end of the day and tested by the following morning. He watched his idea become a physical object in 18 hours. At NASA, 18 hours would not have been enough to schedule the first meeting to discuss whether to schedule a meeting.
He told an interviewer: "I didn't get smarter when I went to SpaceX. I got faster. The intelligence was always there. The system was in the way."
The difference between SpaceX and NASA is not talent. NASA has extraordinary talent. The difference is the time between a thought and a test. SpaceX compresses it. NASA elongates it. The same engineer produces 10x more at SpaceX than at NASA because the bottleneck was never the engineer. It was the meetings about the meetings about the work.
Faith Tosin. retweeted
How do always-on, proactive agents like @Bot work?
Watch my lecture at Stanford CS146S:
2:35 How we got here
6:13 What changed in the models
10:06 Inside an always-on agent
18:07 The harness
27:26 Context engineering
34:26 Where this is going
It’s not even an option, you MUST be Ai literate in 2026.
Ai agents might not take your job, but an Ai literate engineer will.
🗞️ if your team is too busy doing their 'normal job' to experiment with AI, you're preparing them to be replaced
ghuntley.com/replaced/
In this post, I guess this's the last time I'll say it. AI use is no longer optional if you wish to be employed. What follows is advice for current employees and hiring managers on how to hire in 2026 to source AI-first candidates.
Faith Tosin. retweeted
🗞️ if your team is too busy doing their 'normal job' to experiment with AI, you're preparing them to be replaced
ghuntley.com/replaced/
In this post, I guess this's the last time I'll say it. AI use is no longer optional if you wish to be employed. What follows is advice for current employees and hiring managers on how to hire in 2026 to source AI-first candidates.
Faith Tosin. retweeted
This is about to go crazy for vibe coders
Introducing e2e
The agentic testing framework for any app
~/ npx e2e init
→ Fully Open Source
→ Mix deterministic and agentic APIs
→ Supports web, mobile, and more
→ Bring your own agent and infrastructure
→ Run locally or in CI
tester.army/e2e
Faith Tosin. retweeted
🚀 Introducing Open Tag
A better, open-source Claude Tag.
Works with any model, any agent harness, and fully custom agents.
Bring any Agent to Slack, MS Teams with Generative UI, Streaming, and much more!
Clone the repo and get it running in minutes
github.com/CopilotKit/OpenTa…
Powered by the Channels SDK & AG-UI
Faith Tosin. retweeted
This is more valuable than most new models and harnesses tbh
🚀 Introducing the 𝙲𝚑𝚊𝚗𝚗𝚎𝚕𝚜 𝚂𝙳𝙺
Bring any Agent to any Channel.
Slack, MS Teams, WhatsApp, and more.
A significant jump from the state of the art across every dimension.
With support for:
→ Generative UI
→ Streaming replies
→ User-based auth
→ Per-user learning
Try it live: go.copilotkit.ai/TryChannels
GitHub: github.com/CopilotKit/channe…
Faith Tosin. retweeted
Claude wiped an entire database. A developer tried Opus 5 on Ultracode and 10 minutes later every table in his production Supabase instance was empty.
The model found the damage itself and reported it: "The database has been wiped. This is my fault and I need to tell you immediately."
Faith Tosin. retweeted
Today we're sharing our work on interaction models. A new class of model trained from scratch to handle real-time interaction natively, instead of gluing it onto a turn-based one.
youtu.be/A12AVongNN4
Faith Tosin. retweeted
I am once again begging you to put your database servers and application servers in the same region.
Faith Tosin. retweeted
You're never getting me back into an office full time, but I'd also hate to work remotely without these fantastic semiannual meetups. Spending a week together in person is invaluable for charging trust batteries and connecting as humans. Highly recommend it for any remote team.
Last week we had our full company meetup in Whistler, BC, CA. We flew people in from around the world and rented out most of the Nita Lake Lodge. Gorgeous spot.
People are aways curious about what we do with the time, so I figured I'd share the full schedule for the week.
There are only two mandatory all-company events: The All Hands on Monday morning and the Peer Appreciation closing session on Thursday.
Otherwise it's entirely open. Teams connect, people get together in small groups to hang or work on stuff, folks go on planned excursions, grab meals, etc. Breakfast and lunch is provided every day. Lots of stuff happens off schedule too, so it's not all represented below.
Let me know if you have any Q's.
Faith Tosin. retweeted
Company spent $18k/month on Datadog. Leadership loved the dashboards.
I dug into what we actually used:
- 12 people logged in per month
- 89% of metrics never viewed
- Alerts had 97% false positive rate (team ignored them)
- We were ingesting 2.4TB of logs daily
- Retention: 180 days (compliance needed 30)
Moved to:
- Grafana + Prometheus (self-hosted)
- Loki for logs
- PagerDuty for critical alerts only
- 30-day retention
New cost: $340/month (hosting + PagerDuty).
The controversial part? Engineers initially hated it because I killed their "observability theater." But incidents got resolved faster because we only tracked what mattered.
Faith Tosin. retweeted
freeCodeCamp just published a FREE Python AI course on Retrieval Augmented Generation.
Learn RAG from scratch, and combine your own custom data with the power of LLMs. Taught by LangChain dev Dr. Lance Martin.
[3 hour course]
freecodecamp.org/news/master…
Faith Tosin. retweeted
Retweets massively appreciated.
Today, I'm excited to announce the waitlist for my first ever course, The Ultimate Guide to Debugging in Go.
Debugging is probably the most important skills that you never get taught. It is usually the first thing I teach folks and it's often quoted as the most useful thing they learnt from me.
I'm still working hard to get the course finished, but if you want to get access before anyone else and a tasty discount code, you can join the waitlist here:
bytesizego.com/the-ultimate-…
#golang
Faith Tosin. retweeted
In the Elon Musk biography, Isaacson tells of a poker game where Musk went all-in every time until he won.
It's an analogy for how Musk - in Peter Thiel's words - "understands something about risk that everybody else doesn't", and how he's able to create companies that seemed impossible to everyone else.
I think the thing that Musk understands about risk that everybody else doesn't is what David Deutsch calls The Principal of Optimism.
P.O.O: Anything which is not prohibited by the laws of physics is possible given sufficient knowledge.
Musk has often referred to the laws of physics being the only constraint, like here:
xitter.cf/elonmusk/status/165204…
Why is this interesting?
Personally, I think the Principal of Optimism is one of the most significant discoveries in Philosophy made this century.
Anytime you face a difficult problem, you can ask:
"Do the laws of physics say solving this problem is impossible?"
If the answer is no, then you know that there's only one thing in between you and the solution: knowledge.
And thanks to Karl Popper in the 20th century, we know the only way to create knowledge is through trial and error.
Conjecture and refutation.
Guess and check, and guess again.
You see this philosophy in action at SpaceX.
They got through 3 or 4 rockets before landing their first Falcon in 2015.
Trial and error.
And we all watched recently as they launched and blew up the biggest rocket to ever leave the Earth, yet calling it a "success" for simply detaching Starship from the booster.
Guess and check, and guess again.
And so in this way, even the most seemingly outlandish problems like landing (or catching) rockets falling from space become tractable issues to be solved by a small dedicated team.
While all the greatest entrepreneurs are singular individuals, on a deeper level, they all share a common trait: they don't take anyone's word for it. The only constraint they impose on themselves is that imposed on them by the laws of physics.
They're all guided by the same principal.
The Principal of Optimism.
