Gavin Ray retweeted
I built bbtree, the foundation of databases and filesystems, and the fastest concurrent btree.
Code: github.com/XiangpengHao/bbtr…
Blog post & demo: bbtree.xiangpeng.systems/
Gavin Ray retweeted
Today we’re launching something for the era where every AI logo looks like a butthole,
❌ Bots
❌ Dots
✅ Pots
Supports all models. Except Muse, obv.
Gavin Ray retweeted
What if,
for any scientific claim,
you can search 100M+ papers to find the strongest evidence for and against it
⚡️in 1 second?
That’s now possible with Evidence API! 🚀
paperclip.gxl.ai/evidence-ap…
For example, does drinking coffee reduce diabetes risk?
Gavin Ray retweeted
As shown in our recent study, good gains in muscle strength and size can be achieved with as little as ~1 hour of resistance training per week, provided sets are performed with a high level of effort (close to failure). For most of the general population, this can be sufficient to achieve their strength and muscle-building goals. The key is simply to get to the gym, train hard and be consistent 💪
pubmed.ncbi.nlm.nih.gov/4024…
Gavin Ray retweeted
Imagine effortlessly gaining deeper insights into your nighttime recovery 💤
A new feature, arriving this fall on Pixel Watch, will track your sleep breathing quality, helping you understand how your body rests. No wires, no sleep study needed.
goo.gle/4q8zDbM
Gavin Ray retweeted
Photos & video were how the last generation expressed themselves.
Today’s form of expression is software.
Who will create the next viral game or app that plays right inside of the X Timeline?
Try the new Grok app builder.
Gavin Ray retweeted
Replying to @GavinRayDev
Yep. To that point, my dissertation research investigated a bodybuilding style workout (3 x 10) vs a powerlifting style workout (7 x 3). By the end of the 8-week intervention, the powerlifting group was pretty spent and had nagging injuries while the BB group was well-recovered.
The vast majority of studies use a moderate rep range so it's basically a default when discussing the topic
pubmed.ncbi.nlm.nih.gov/2471…
Gavin Ray retweeted
A new review paper highlights something that’s becoming harder to ignore: GLP-1 receptor agonists appear to have meaningful anti-inflammatory effects that even extend well beyond weight loss.
In chronic inflammatory and autoimmune skin conditions like psoriasis, hidradenitis suppurativa, and atopic dermatitis, clinicians are reporting improvements in disease activity - sometimes even before significant weight loss occurs. The mechanisms seem to involve direct effects on immune cell activity, keratinocyte function, and inflammatory signaling pathways.
GLP-1 medications could end up being viewed as some of the most broadly anti-inflammatory drugs we’ve seen in clinical practice.
Full paper here: mdpi.com/1999-4923/18/5/605
Gavin Ray retweeted
Bio databases/APIs weren't designed for AI agents🧬
So we expanded #Paperclip to transform common molecular databases—UniProt, PDB, ChEMBL—into a unified agent-native virtual filesystem.
Now you can do deep research across 10^6 molecules much more accurately and 10x faster!
All integrated with millions of full-text papers also indexed in Paperclip. Free to use gxl.ai/blog/adding-biology-d…
Gavin Ray retweeted
Research indicates that short inter-set rest intervals (≤60 seconds) can compromise muscle hypertrophy, while resting longer than ~90–120 seconds does not seem to further enhance muscle growth. In practice, however, most people regulate their rest intervals subjectively instead of timing them. How does this affect muscle development? Interestingly, no previous study investigated the topic. Until now...
Led by my doctoral student @ae.mohan, we randomized resistance-trained men and women to an 8-week lower-body resistance training program using either a fixed 2–3-minute inter-set rest interval or a self-selected rest condition in which participants initiated each subsequent set when they felt ready (just preprinted on SportRxiv: sportrxiv.org/index.php/serv…). To ensure that self-selected rest intervals reflected perceived recovery rather than external distractions, participants were not permitted to use mobile devices or converse with others during training sessions.
After 8-weeks, both groups achieved similar gains in muscle hypertrophy, strength, and local muscular endurance. However, the fixed-rest group completed their workouts in 29% less time than the self-selected group (average rest intervals: 2.4 vs. 3.7 minutes, respectively). That’s particularly striking because we didn’t allow participants to talk or use their phones. In a real-world gym environment, those distractions would almost certainly make self-selected rest periods even longer.
Couple of takeaways. First, these findings reinforce the idea that resting longer than about 2 minutes between sets doesn’t appear to provide any additional muscle-building benefit. Second, for those who are short on time, actively timing rest intervals seems to be a practical strategy. Given that lack of time is consistently cited as the leading barrier to exercise participation, simply setting a timer between sets may help improve workout efficiency—and ultimately, adherence to resistance training.
As always, a huge shout-out to my graduate students for bringing this research to fruition. Their dedication and hard work are the driving force behind our productivity 💪
Gavin Ray retweeted
OpenAI just killed us.
One problem, they didn't actually solve the biggest problem of AI at work: Context
Let me prove it to you...
Here's a wild example of ChatGPT Work going head-to-head with PromptQL:
Gavin Ray retweeted
Introducing SensorFM, a large-scale Sensor Foundation Model that learns from 1 trillion-minutes of unlabeled wearable data drawn from five million consented participants.
SensorFM learns a single, reusable representation of sensed human physiology that transfers across cardiovascular, metabolic, sleep, and mental health, as well as lifestyle and demographic factors.
More →goo.gle/4ycJvot
Gavin Ray retweeted
Holy f***king shit. Grok 4.5 is a monster.
On our internal evals on maintaining a company wiki: Grok 4.5 is fable-level on reasoning and a little lower than opus 4.8 on rigor.
@elonmusk and @cursor_ai have just been COOKING.
Just added Grok-4.5 on PromptQL for everyone.
Gavin Ray retweeted
We launched a new website to a) Provide information about supplements b) find out what people are using and c) share their experiences. Check it out: mysupplehub.org/#/
Gavin Ray retweeted
introducing egaki
a framework to make videos with mdx. for agents & humans
the video below was entirely written by Fable 5. I didn't touch a video editor or code once
Gavin Ray retweeted
Docker Compose has finally shipped native support for init containers, e.g. running DB migrations or similar one-off tasks.
Somewhat similar to k8s, they’re ephemeral containers that must exit successfully before the service containers start. They’re defined as pre_start hooks in the Compose file.
I shipped something very similar a few months ago for Uncloud designed as pre_deploy hooks.
There is no fundamental difference, only a few parameters differ. But Uncloud is a multi-host orchestrator where "deploy" is a distinct first-class operation so I believe the pre_deploy naming more clearly describes the intent to run something before the service rollout kicks in.
We may still adopt the new pre_start spec eventually, for example, to specify a container-lifecycle hook that runs before starting every service replica, not only once per service deploy.
Gavin Ray retweeted
Fable 5 is a BEAST!
We gave 4 frontier models the same real job: clean up a bloated page in the wiki our team + our AI use as a shared skills repo.
Fable was the only one that worked by a huge gap, with a generalizable intuition.
~40 sections of accumulated notes, duplicated & stale context, broken links.
THE SETUP
Our product (PromptQL) gives a team a shared AI agent plus a human-readable wiki the agent maintains as a shared skills and shared knowledge repo.
This particular page had bloated into ~40 sections, had the same guidance repeated in 4 places, had dated status notes that were stale for a few months, and section titles that were not named according to the principle the agent is usually supposed to follow while maintaining wiki pages.
Think of it as a dark corner of our wiki that because of a combination of human & AI actions become a particular weakness for either agent or human to maintain.
We asked each model to restructure it with identical instructions.
WHY THIS IS A GOOD MODEL TEST
Maintenance punishes eloquence and rewards diligence. The only useful output is the fully rewritten page. The task also had hidden constraints (the page format supports flat sections only, no nesting) that are typical of knowledge work. We did this work on a duplicate copy of the page intentionally, while the original page was also kept around.
WHAT FABLE 5 DID (10/10 on our rubric)
• Read all ~40 sections before judging. The only model that did.
• Found the actual redundancy: one piece of guidance repeated 3x, another 4x. Collapsed each to a single home.
• Rewrote 40 incident-named sections into 9 skill-shaped ones ("how to do X" instead of "the June 12 issue").
• Added a routing map at the top so the reader can jump straight to the right section
• Deleted stale point-in-time facts and kept the durable ones.
• Caught the broken link. Every other model missed it.
• Noticed the page looked like a duplicate, flagged it — and then did the assigned job anyway.
• Delivered the complete rewritten page in one response. No outline. No "here's what I would do."
WHAT THE OTHER THREE DID
• GLM 5.2 wrote an articulate review memo about the page instead of restructuring it, but only after reading ~15 of the 40 sections. It shipped the diagnosis as the deliverable with a headline recommendation to delete the page ignoring the fact that we'd told it about the deliberate duplicate of the page. However, it produced the single sharpest observation of the batch about keyword placement.
• Opus 4.8 preserved every word verbatim from the original page and wrapped the mess in nested sub-headings that was invalid formatting. It also needed a second prompt before it would output the full page.
• Sonnet 5 reasoned beautifully about what the page WAS but applied every correct principle at whole-page granularity to justify discarding the content, and never shipped a complete rewrite.
THE INTUITION TO TAKE AWAY
Consider a task that is: read everything → judge fact by fact (rigorously) → rewrite completely — long, unglamorous work where the model has to respect the constraints of the system it's operating in and spend real output tokens finishing the job. For such tasks, Fable 5 is currently in a class of its own.
Add that to your model routing classifier and thank me later.
Gavin Ray retweeted
The folks at Nvidia are building GPU query engines with DataFusion as the embeddable frontend:
developer.nvidia.com/blog/de…




























