Hacker News: cjtrowbridge

New comment by cjtrowbridge in "MacBook Neo and how the iPad should be"

cjtrowbridge — Fri, 24 Apr 2026 22:20:25 +0000

(this is how android has always worked)

New comment by cjtrowbridge in "NASA announces overhaul of Artemis program amid safety concerns, delays"

cjtrowbridge — Thu, 05 Mar 2026 19:15:51 +0000

Falcon Heavy (as its name implies) is not capable as a super-heavy lift vehicle. Past GTO, it can only carry 18 tons. You need more than double that to reach the Moon and come back, as NASA did in the 1960s.

New comment by cjtrowbridge in "NASA announces overhaul of Artemis program amid safety concerns, delays"

cjtrowbridge — Thu, 05 Mar 2026 19:11:36 +0000

You're confused. Elon said two weeks ago that they have given up on Mars and the Moon is the goal they're currently working on. He said it will probably take them another decade to catch up to NASA of the 1960s by reaching the Moon with a real super-heavy rocket that actually works.

New comment by cjtrowbridge in "NASA announces overhaul of Artemis program amid safety concerns, delays"

cjtrowbridge — Thu, 05 Mar 2026 19:10:25 +0000

No, it's never made it to orbit.

New comment by cjtrowbridge in "NASA announces overhaul of Artemis program amid safety concerns, delays"

cjtrowbridge — Thu, 05 Mar 2026 19:09:48 +0000

It's not possible to compare, because while the SLS just got back from the Moon and is about to go back; SpaceX has never had a single successful super-heavy launch. Now that Elon has officially given up on Mars and decided to spend the next decade trying to figure out how to get to the moon, we may see some progress. All he has to do is put down the drugs and catch up to the NASA of the 1960s.

New comment by cjtrowbridge in "NASA announces overhaul of Artemis program amid safety concerns, delays"

cjtrowbridge — Thu, 05 Mar 2026 19:07:17 +0000

Only with LEO launches, and the soviet rockets from the 90s are still cheaper and more reliable at that. Enormous subsidies and sanctions against Russia are the only thing pushing anyone to spend more on inferior Falcon rockets.

New comment by cjtrowbridge in "NASA announces overhaul of Artemis program amid safety concerns, delays"

cjtrowbridge — Fri, 27 Feb 2026 23:33:02 +0000

All of SapaceX rockets waste close to half their payload capacity on extra fuel for landing, extra equipment for landing, and they still have a 100% failure rate on every super-heavy launch they've ever attempted. SpaceX has blown up more rockets in the last year than NASA has in its entire history. NASA's super heavy rockets have been working successfully since 1967. NASA did build the first single-stage-to-orbit rockets that also successfully landed, but it immediately realized that was a huge waste of resources. Instead, they put parachutes on rockets and then refurbished them instead. So NASA gets double the payload capacity for free. The boosters currently strapped to the SLS that's about to go to the Moon are the same ones that previously took space shuttles to orbit in the 90s. NASA has been to the Moon and Mars; SpaceX has never made it to either, and just last week Elon said they've officially given up on going to Mars, and they're hoping to make it to Moon in another decade instead. NASA is going next month. SpaceX is just vaporware being run by a drug addict whose only goal is to sell it to the public markets before the house of cards comes down.

New comment by cjtrowbridge in "Frontier AI agents violate ethical constraints 30–50% of time, pressured by KPIs"

cjtrowbridge — Tue, 10 Feb 2026 04:29:59 +0000

A KPI is an ethical constraint. Ethical constraints are rules about what to do versus not do. That's what a KPI is. This is why we talk about good versus bad governance. What you measure (KPIs) is what you get. This is an intended feature of KPIs.

New comment by cjtrowbridge in "Testing the Raspberry Pi 500+'s new mechanical keyboard"

cjtrowbridge — Sun, 28 Sep 2025 02:11:33 +0000

Radxa has rpi clones with better specs that already do that

New comment by cjtrowbridge in "The LLM Lobotomy?"

cjtrowbridge — Sat, 20 Sep 2025 21:26:06 +0000

This brings up a point many will not be aware of. If you know the random seed and the prompt, and the hash of the model's binary file; the output is completely deterministic. You can use this information to check whether they are in fact swapping your requests out to cheaper models than what you're paying for. This level of auditability is a strong argument for using open-source, commodified models, because you can easily check if the vendor is ripping you off.

New comment by cjtrowbridge in "Long-term exposure to outdoor air pollution linked to increased risk of dementia"

cjtrowbridge — Sat, 09 Aug 2025 16:38:21 +0000

This is an obvious third-factor for poverty and marginalization. Air pollution exposure is the most classic example of unequal protection from harm in environmental justice. Alameda county did a study on this that found as an isolated, direct-result of unequal exposure to air pollution, black people live 15 years less than white people on average in Alameda County alone.

New comment by cjtrowbridge in "Open models by OpenAI"

cjtrowbridge — Wed, 06 Aug 2025 10:37:11 +0000

No. It's because large models have leveled off and commodified. They are all trending towards the same capabilities, and openai isn't really a leader. They have the most popular interface, but it really isn't very good. The future is the edge, the future is smaller, more efficient models. They are trying to define and delineate a niche that needs datacenters where they can achieve rents.

New comment by cjtrowbridge in "Qwen-Image: Crafting with native text rendering"

cjtrowbridge — Tue, 05 Aug 2025 01:58:14 +0000

two p40 cards together will run this for under $300

New comment by cjtrowbridge in "Inter-Planetary Network Special Interest Group"

cjtrowbridge — Thu, 24 Jul 2025 22:37:51 +0000

We already have an interplanetary internet called the NASA Deep Space Network. Understanding it's limitations and challenges is a good way to start thinking about this.

New comment by cjtrowbridge in "Tyr, a new Rust DRM driver targeting CSF-based ARM Mali GPUs"

cjtrowbridge — Mon, 07 Jul 2025 21:19:49 +0000

what does this have to do with the viking god of war like its not that hard to come up with some relevant name

New comment by cjtrowbridge in "My home servers are not a homelab"

cjtrowbridge — Mon, 30 Jun 2025 02:51:24 +0000

[flagged]

New comment by cjtrowbridge in "Llama.cpp AI Performance with the GeForce RTX 5090 Review"

cjtrowbridge — Mon, 10 Mar 2025 09:54:52 +0000

P40s are so slept on. 24gb vram for $150.

New comment by cjtrowbridge in "Add "fucking" to your Google searches to neutralize AI summaries"

cjtrowbridge — Sat, 01 Feb 2025 02:32:50 +0000

Lmao

New comment by cjtrowbridge in "Show HN: Small LLM with Large Power"

cjtrowbridge — Fri, 31 Jan 2025 17:39:11 +0000

Bro use fine web. Random books are not objectively good training data.

New comment by cjtrowbridge in "OpenAI just put the final nail in the coffin of the open World Wide Web"

cjtrowbridge — Sat, 25 Jan 2025 01:54:57 +0000

This is only a threat to rent seeking, not the open web.