Hacker News: v9v

New comment by v9v in "Cooling in Space"

v9v — Sun, 14 Jun 2026 10:48:07 +0000

I'll add another to the list of relevant links in the comments: https://spectrum.ieee.org/orbital-data-centers-heat

New comment by v9v in "Claude Fable is relentlessly proactive"

v9v — Fri, 12 Jun 2026 05:55:27 +0000

For those that don't know, this is a reference to a lovely story involving Charles Proteus Steinmetz https://www.smithsonianmag.com/history/charles-proteus-stein...

New comment by v9v in "Show HN: A 2D and 3D robot arm simulator built in Excel"

v9v — Wed, 10 Jun 2026 14:43:42 +0000

I guess you're writing it all out for educational purposes, but conventionally to describe the kinematics of a serial robot arm Denavit-Hartenberg parameters are used, which needs only 4 parameters per link.

The Tool Bans Just Arrived [video]

v9v — Wed, 10 Jun 2026 14:39:10 +0000

Article URL: https://www.youtube.com/watch?v=n4QxcwAm2bQ

Comments URL: https://news.ycombinator.com/item?id=48476984

Points: 1

# Comments: 0

New comment by v9v in "VibeOS – Hallucinated Operating System [video]"

v9v — Fri, 05 Jun 2026 08:12:59 +0000

It's hard to find it since it's a livestream. From the comments: https://www.youtube.com/watch?v=HG0twQJ7aG4&t=16047s

New comment by v9v in "Do transformers need three projections? Systematic study of QKV variants"

v9v — Fri, 05 Jun 2026 06:10:09 +0000

Somewhat relevant is a blog-post that likens attention to kernel smoothing: https://bactra.org/notebooks/nn-attention-and-transformers.h... (as discussed before in https://news.ycombinator.com/item?id=38756888)

New comment by v9v in "Magenta RealTime 2: Open and Local Live Music Models"

v9v — Fri, 05 Jun 2026 05:53:43 +0000

Finally an auto-accompanist to rival Band-in-a-Box? https://www.bandinabox.com/

VibeOS – Hallucinated Operating System [video]

v9v — Thu, 04 Jun 2026 07:00:07 +0000

Article URL: https://www.youtube.com/watch?v=z3pV6FHvcgM

Comments URL: https://news.ycombinator.com/item?id=48395072

Points: 17

# Comments: 3

New comment by v9v in "Coalton is an efficient, statically typed Lisp with ideas from Haskell and OCaml"

v9v — Wed, 27 May 2026 07:35:09 +0000

Recently a new VS Code extension was announced that you may want to check out: https://old.reddit.com/r/lisp/comments/1tn3zff/new_cl_vscode... It purports to be more stable.

New comment by v9v in "The Art of Money Getting"

v9v — Sat, 23 May 2026 19:54:11 +0000

I think Kevin Kelly has taken the opposing side before: https://colossus.com/article/flounder-mode/ (discussed https://news.ycombinator.com/item?id=44455933)

New comment by v9v in "Humanoid Robot Actuators"

v9v — Mon, 04 May 2026 08:16:06 +0000

There are a few of these being sold as products: AGIBOT has some models like that (eg https://www.agibot.com/products/A2_W). One argument that could be made for legged robots is that these wheeled ones can only work in wheelchair-accessible spaces. Legged robots can also balance themselves dynamically: a wheeled robot may tip over if anything violates its static balance, eg. carrying a load high up and going through a steep incline, though I guess having the torso be tiltable as in https://www.agibot.com/products/G2 addresses that.

Legged robots overall have more implementation complexity, spend energy just to idle standing up, but can go over much more varied terrain provided the controller is good enough. There are ways to adapt wheeled bases to different terrains (eg. larger wheels, whegs, RHex, rocker-bogies) but we know how to use legs to locomote over many terrains from personal experience, while the perfect wheeled/non-legged locomotion system perhaps remains to be designed.

There's also the way robotics is going toward data-driven methods, which in some forms (ie. imitation learning) require human teleoperation data. Here having the robot mimic the human form makes the mapping from human joints to robot joints easier (compared to other morphologies where you'd need to figure out how to best approximate a human motion with the joints/joint limits your robot has, though this is not impossible).

New comment by v9v in "Dotcl: Common Lisp Implementation on .NET"

v9v — Sat, 02 May 2026 12:47:23 +0000

There's also Bike for CL/.NET interop: https://github.com/Lovesan/bike

New comment by v9v in "The Classic American Diner"

v9v — Sat, 02 May 2026 06:17:39 +0000

Put me down as interested!

New comment by v9v in "“Why not just use Lean?”"

v9v — Tue, 28 Apr 2026 07:46:46 +0000

Ada/SPARK may also be worth a look.

New comment by v9v in "Mine, an IDE for Coalton and Common Lisp"

v9v — Sun, 26 Apr 2026 07:50:48 +0000

DREI = DREI Replaces EINE's Inheritor

https://mcclim.common-lisp.dev/static/documents/drei.pdf

New comment by v9v in "Show HN: Browse GitHub repos in Emacs without cloning"

v9v — Sun, 26 Apr 2026 07:26:36 +0000

I use https://github.com/TxGVNN/github-explorer for this and even though it doesn't have a C-x C-f nicety (you just m-x github-explorer then type in the repo name) it works via http (or at least I don't recall giving it any API key or anything).

New comment by v9v in "MuJoCo – Advanced Physics Simulation"

v9v — Wed, 22 Apr 2026 13:47:23 +0000

One thing to be mindful of is that you can get a simulation to behave in (almost) any way you want if you set the parameters right, so you should take care to understand the assumptions that you're baking into your sim before taking its results as gospel.

New comment by v9v in "SI Units for Request Rate (2024)"

v9v — Sun, 19 Apr 2026 10:36:55 +0000

For it to be an SI unit, shouldn't you be able to express it in terms of the 7 SI base units?

Good Bonds

v9v — Thu, 16 Apr 2026 13:51:44 +0000

Article URL: https://robot-daycare.com/posts/adhesive/

Comments URL: https://news.ycombinator.com/item?id=47792957

Points: 2

# Comments: 0

New comment by v9v in "Darkbloom – Private inference on idle Macs"

v9v — Thu, 16 Apr 2026 08:37:56 +0000

They could consider registering as a provider on something like OpenRouter if they aren't getting enough inference requests on their own site.