Hacker News: double0jimb0

New comment by double0jimb0 in "Sawe becomes first athlete to run a sub-two-hour marathon in a competitive race"

double0jimb0 — Mon, 27 Apr 2026 00:41:00 +0000

Good eye! Almost like an inverted golf ball. If I remember correctly from undergrad aero, purpose of dimples on golf ball is to detach/disrupt more of any laminar flow earlier as air passes around the ball, which decreases drag. Golf balls travel way faster than a runner, but possibly still has some minor effect?

New comment by double0jimb0 in "Lego's 0.002mm specification and its implications for manufacturing (2025)"

double0jimb0 — Wed, 11 Mar 2026 15:00:35 +0000

Agreed. Same or greater injection molding challenges for bottle caps, small plastic containers, things that also are in the hundreds of millions of parts annually. More challenging as they are often using polypropylene which is harder to mold due to its high anisotropy (shrinks in different rates depending on if it's flow or cross-flow direction).

New comment by double0jimb0 in "Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini in ChatGPT"

double0jimb0 — Thu, 29 Jan 2026 22:39:23 +0000

In my experience with Gemini, I find it incapable of not hallucinating.

New comment by double0jimb0 in "Ask HN: Hearing aid wearers, what's hot?"

double0jimb0 — Mon, 24 Nov 2025 16:20:16 +0000

I'm using Widex Allure. I only need to use one ear for now, and the low latency from the Widex was what won it, tried a couple Oticons that had a disorienting amount of lag. Also the Widex has really great high frequency transient filtering, much better than the Oticons in my experience. With a house full of screaming kids, this was also critical.

New comment by double0jimb0 in "Everything that's wrong with Google Search in one image"

double0jimb0 — Thu, 25 Sep 2025 01:01:56 +0000

Just imagine all the gigawatts cooked to just serve ads via LLMs

New comment by double0jimb0 in "Ask HN: What's a good 3D Printer for sub $1000?"

double0jimb0 — Wed, 17 Sep 2025 20:23:35 +0000

Printable PC/Nylon/ABS are not the same as the injection molded equivalents, you may want to research this more if that is an issue. I've printed every material under the sun trying to chase various material properties, and I usually just come back to printing in PLA due to it's excellent mechanical properties (up to a certain temp), excellent layer adhesion, and near 100% success rate. When you stray from from PLA, you will start running into warping, shrink, layer adhesion, and other issues. If you need parts in PC/Nylon/ABS, get the design dialed in in PLA (I as almost all others recommend bambulab), and then send the part to FirstCut/Protolabs to have it machined out of whatever you want.

New comment by double0jimb0 in "Custom telescope mount using harmonic drives and ESP32"

double0jimb0 — Tue, 19 Aug 2025 17:16:23 +0000

I've found ChatGPT and Claude to be extremely helpful as guides for this sort of stuff. As long as the software has decent/good documentation for the features you are trying to create, the AI does a great job telling you how to do things. There's definitely deep end stuff that the AI doest have enough reference material for, but I find it much quicker than blinding clicking through stuff or speeding watching YouTube videos.

You can also ask it to build a study guide for you to help build foundational knowledge.

But as always, expect some hallucinations, so ask it to provide links/references.

New comment by double0jimb0 in "Is chain-of-thought AI reasoning a mirage?"

double0jimb0 — Thu, 14 Aug 2025 16:32:46 +0000

So exactly what language/paradigm is this brain modeling the problem within?

New comment by double0jimb0 in "Designing a flatpack bed"

double0jimb0 — Mon, 28 Jul 2025 03:20:17 +0000

Author could spend a lot more time learning how to use Autodesk Inventor sketch environment. You can setup sketch dimensions as ‘driven’ and use equations to comply to whatever exterior box dimensions one chooses. His creating assembly from parts and arranging is silly. All parts /solids should come from same master sketch.

And then also how to use Autodesk CAM, you can use sketch geo to set paths, define offsets, etc.

New comment by double0jimb0 in "I Read All of Cloudflare's Claude-Generated Commits"

double0jimb0 — Sat, 07 Jun 2025 02:54:22 +0000

Are there places that follow the research that speak to the layperson?

New comment by double0jimb0 in "Apple Notes Will Gain Markdown Export at WWDC, and, I Have Thoughts"

double0jimb0 — Fri, 06 Jun 2025 00:25:47 +0000

That can be disabled [0] (and I feel like has been on option for many years now).

[0] https://www.youtube.com/watch?v=Go4x9sIGEg8

New comment by double0jimb0 in "Thoughts on thinking"

double0jimb0 — Sat, 17 May 2025 02:48:50 +0000

99% (or more?) of human written work is filler/fluff. LLMs seem to doing a great job of reducing this by actually getting to the point.

There is still a limit at which “points” can be groked, humans can only read so fast.

What is the problem here?

New comment by double0jimb0 in "US vs. Google amicus curiae brief of Y Combinator in support of plaintiffs [pdf]"

double0jimb0 — Sun, 11 May 2025 02:20:35 +0000

Yup, ok with all of those.

New comment by double0jimb0 in "Boom XB-1 First Supersonic Flight [video]"

double0jimb0 — Tue, 28 Jan 2025 19:10:56 +0000

The engine in XB-1 test plane is not the same that’s going in the production plane.

New comment by double0jimb0 in "Autodesk deletes old forum posts suddenly"

double0jimb0 — Thu, 02 Jan 2025 21:09:47 +0000

Autodesk deserves to be poster child for enshitification.

A few weeks ago I found a video that allowed me to work around a bug in Inventor 2025 that has existed for 20 years… the video was a grainy screen capture from a Windows 97 machine!

And each year I pay more for a product that gets worse.

New comment by double0jimb0 in "Commercial tea bags release microplastics, entering human cells"

double0jimb0 — Mon, 23 Dec 2024 15:48:22 +0000

Or are they coated with wax/parafin?

New comment by double0jimb0 in "What we know about CEO shooting suspect"

double0jimb0 — Mon, 09 Dec 2024 23:18:15 +0000

YouTube account was terminated at 4:11PM MST, I was watching it live as it switched to this message:

“This video is no longer available because the YouTube account associated with this video has been terminated.”

New comment by double0jimb0 in "SpaceX Super Heavy splashes down in the gulf, canceling chopsticks landing"

double0jimb0 — Wed, 20 Nov 2024 01:03:37 +0000

Also, a rocket that hangs doesn’t need near the structural beef as one that is designed to withstand landing on its feet.

New comment by double0jimb0 in "Meta does a U-turn, will share its technology with Five Eyes members"

double0jimb0 — Thu, 07 Nov 2024 15:34:42 +0000

May as well get a little national PR out of it given current geopolitics.

New comment by double0jimb0 in "Eighty Years of the Finite Element Method (2022)"

double0jimb0 — Sun, 03 Nov 2024 03:12:17 +0000

FEM runs on the same math and theories those bridges were designed on on paper.