mattt

simulation & RL for humanoids

[mattt @maedmatt]

@york1to @yacineMTB Curious to know more about it, working on something similar. Drop me a dm :)

[mattt @maedmatt]

Martino is cooking 🧑‍🍳

[Martino Russi @NepYope]

Homunculus F³ (Full Force Feedback) haptic glove coming soon 😁

[mattt @maedmatt]

@PSrobotics How are feet modeled? are you using the "default" unitree urdf/xml?

This heel toe is really hard to get. Impressive!

[mattt @maedmatt]

“Creation is the distillation of intent into form. Intent is usually inseparably embedded into the form of the artifact. A human iteratively (sometimes painstakingly) shapes and reshapes their creation until it sufficiently matches what’s in their mind’s eye.”

beautifully said

[Caleb Gross @noperator]

https://t.co/gOSvgSg8kv

[mattt @maedmatt]

@theskory vim mode it's a bit bugged:
- works pretty well for navigating tool calls
- it's bad in the final output (which is the most important), the whole output is considered as a single block so you cant navigate it properly with j and k

For the rest best TUI available rn

[mattt @maedmatt]

@skcd42 but in general I think it's way cooler than the one the others are offering, kudos

[mattt @maedmatt]

@skcd42 vim mode it's a bit bugged:
- works pretty well for navigating tool calls
- it's bad in the final output (which is the most important part), the whole output is considered as a single block so you cant navigate it properly with j and k

[mattt @maedmatt]

sick, will play with it tomorrow

[Ben C @BdcauntBen]

I built RoboRank: "It's like Leetcode for roboticists"

- On Leetcode you learn how to reverse a doubly linked list
- RoboRank teaches you to debug control systems, implement filters, and use powerful tools like @rerundotio to debug simulations. All scored on a global leaderboard

[mattt @maedmatt]

Very clean explanation!
@robertnishihara

[Rohan Paul @rohanpaul_ai]

Good GPU performance summaries - in 6 mints.

[mattt @maedmatt]

@ErenChenAI https://t.co/pOXrv15ULl

[mattt @maedmatt]

sometimes you just have to
cd ../..
to
ls

[mattt @maedmatt]

@ben_baybay https://t.co/qjYf78mQrL

[mattt @maedmatt]

@JulienBlanchon How's data actually annotated?

[mattt @maedmatt]

Imagine the quality of software we'll have in a couple of years.

Those are going to be though times, but i'm confident we'll get trough it :)

[Theo - t3.gg @theo]

Security things from the last few days:
- CopyFail (linux pwn'd)
- CopyFail 2/Dirty Frag
- 13 advisories in Next.js
- Over 70 CVEs addressed in MacOS 26.5
- ~50 CVEs addressed in iOS 26.5
- YellowKey (Windows Bitlocker pwn'd entirely)
- GreenPlasma (Windows privilege escalation)
- CVE-2026-21510 and CVE-2026-21513 confirmed to be used by Russia for Windows RCE
- CVE-2026-32202 separately confirmed to be used by Russia for sensitive document access
- Mini-Shai Hulud (over 300 JS and Python packages compromised via GitHub Action cache poisoning)
- Google confirms they have identified AI-powered exploitation of zero days in an unidentified "open-source, web-based system administration too"
- Canvas (popular LMS used in most schools) pwn'd entirely
- PAN-OS (palo alto networks) pwn'd with a 9.3 severity CVE-2026-0300

Are you scared yet?

[mattt @maedmatt]

"You have infinite LINE budget (the AI will generate as much code as you want). But you have the same finite complexity budget as always."

https://t.co/C2mTWGVo1M

[mattt @maedmatt]

pretty sick work! cool to see what's next

[elie @eliebakouch]

this is fascinating, they train an encoder/decoder but use LLM matching the target model's shape for each part, so the latent space is just plain language and they can detect reward hacking, unwanted behavior and more

could even see it being used as an eval to quantify how smart a model is, i love this

[mattt @maedmatt]

I guess training is going well....

[mattt @maedmatt]

@arnie_hacker what can you do with this data? this is synthetic right?

Give me a nice application, I've played cs for years :)

[mattt @maedmatt]

why is my GPT-5.5 dropping random 'goblin' metaphors everywhere?

This is crazy XD

[mattt @maedmatt]

@breadli428 @GoogleDeepMind Congrats!