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dark_star commented on The Books of Earthsea by Ursula K. Le Guin   lars.ingebrigtsen.no/2025... · Posted by u/Tomte
dark_star · 8 months ago
The (also awesome) writer Jo Walton wrote a great celebration of Ursula Le Guin's life. She wrote in part:

She widened the space of science fiction with what she wrote. She got in there with a crowbar and expanded the field and made it a better field… Le Guin expanded the possibilities for all of us, and then she kept on doing that. She didn’t repeat herself. She kept doing new things. She was so good. I don’t know if I can possibly express how good she was.

https://reactormag.com/bright-the-hawks-flight-in-the-empty-...

dark_star commented on Yek: Serialize your code repo (or part of it) to feed into any LLM   github.com/bodo-run/yek... · Posted by u/mohsen1
mg · a year ago
I think this is where the future of coding is. It is still useful to be a coder, the more experienced the better. But you will not write or edit a lot of lines anymore. You will organize the codebase in a way AI can handle it, make architectural decisions and organize the workflow around AI doing the actual coding.

The way I currently do this is that I wrote a small python file that I can start with

    llmcode.py /path/to/repo
Which then offers a simple web interface at localhost:8080 where I can select the files to serialize and describe a task.

It then creates a prompt like this:

    Look at the code files below and do the following:

    {task_description}

    Output all files that you need to change in full again,
    including your changes. In the same format as I provide
    the files below, that means each file starts with
    filename: and ends with :filename
    Under no circumstances output any other text, no additional
    infos, no code formatting chars. Only the code in the
    given format.

    Here are the files:

    somefile.py:
    ...code of somefile.py...
    :somefile.py

    someotherfile.py:
    ...code of someotherfile.py...
    :someotherfile.py

    assets/css/somestyles.css:
    ...code of somestyles.css...
    :assets/css/somestyles.css

    etc
Then llmcode.py sends it to an LLM, parses the output and writes the files back to disk.

I then look at the changes via "git diff".

It's quite fascinating. I often only make minor changes before accepting the "pull request" the llm made. Sometimes I have to make no changes at all.

dark_star · a year ago
Would you be willing to post the llm.py code? (Perhaps in a Github gist?)
dark_star commented on Three-quarters of the land is drying out, 'redefining life on Earth'   grist.org/international/t... · Posted by u/rntn
dark_star · a year ago
This doesn't address the ecosystem problems and costs imposed by climate change - but for crops and drinking water, it looks like fresh water created by solar powered desalinization is going to be very inexpensive in the future. [1][2] This is mainly due to the fact that solar power will be almost free in the near future.[3]

1. https://caseyhandmer.wordpress.com/2024/01/09/a-vision-for-t...

2. https://caseyhandmer.wordpress.com/2022/11/20/we-need-more-w...

3. https://caseyhandmer.wordpress.com/2024/11/09/solar-and-batt...

dark_star commented on SpaceX Super Heavy splashes down in the gulf, canceling chopsticks landing   twitter.com/spacex/status... · Posted by u/alach11
whaaaaat · a year ago
I think that's a reasonable attitude to a point, but like, it doesn't scale infinitely. Build it and it will come to 50-100x today's launch capacity? And Mars is still a laughable pipedream. Doing 100s of launches will cost SpaceX so much more than they are making selling launches to the rest of the world, it simply makes no sense.

And like, I'm a space enthusiast. I think we should be out mining asteroids and setting up space living quarters. I just... hourly starship launches don't make any sort of logical sense.

What they do make sense as is a marketing gimmick for Elon to get on stage to appeal to emotions of investors and nerds online. It's a gorgeous dream! I want it to be! But it's just a clever emotional appeal to get you to not think too hard or too critically.

dark_star · a year ago
It depends on what you are thinking critically about - what is your frame of mind. You don't see a viable business here.

But SpaceX does see several possibilities. One is supplying a US Moon base and US space stations. Since Starship/Superheavy rockets are so inexpensive to build (about 100M in expendable configuration [1] even doing something like that would be profitable for SpaceX.

For Mars colonization, Elon Musk has said his target for Starship to Mars cost per flight was USD 10M. If it can take 100 people, and they each pay USD 200K per person, that's USD 20M, a 10M profit for SpaceX.

It might also be that a nation state might want to fund something like that to establish a base there.

Again, you may see a viable business in Mars colonization. But SpaceX does. So do other people. It was conventional wisdom that Starlink would not work, but it is now quite profitable. [2]

[1] https://en.wikipedia.org/wiki/SpaceX_Starship

[2] https://www.nasdaq.com/articles/billionaire-elon-musks-new-s...

dark_star commented on SpaceX Super Heavy splashes down in the gulf, canceling chopsticks landing   twitter.com/spacex/status... · Posted by u/alach11
whaaaaat · a year ago
I've never understood this, because the economics of hourly launches just don't make sense. There's not nearly enough demand, even assuming they drive prices down and induce demand.

Today, there are about ~1,100 metric tons of satellites launched into orbit annually. Starship is aiming for $100/kilogram cost per kilo to orbit. Let's get absolutely wild and assume that Starship takes over the entire world's launches. It would earn what, 1,100 tons * 1000 kilos/ton * $100/kilo = $110,000,000. $110M is... not a tremendous amount of money. It's definitely not enough to be building a fleet of rockets up.

Only about 20% of satellite costs are due to launch (and that was found in a pre-SpaceX era), so it's not likely satellite builders are going to optimize solely on cost. It's not an order of magnitude cost savings for builders. So SpaceX will have to find other means to compete -- reliability, capability, etc.

The US puts up <100 orbital launches per year. Even if Starship took all of those (and it won't), they'd need to have 10x the number of launches for an hour level restack and refuel to make a difference. And that's not even counting the differences in payload capacity. Add several whole integer multipliers to account for that. For starship to need an "hours-scale" relaunch time, you'd need something like 50x+ the number of launches we currently have AND every launch in the nation to be on the platform.

It's a cool engineering target, but it's total nonsense for now.

dark_star · a year ago
It's not nonsense. To refuel Starship to land on the Moon like the NASA HLS program proposes [1], it will take 16 Starship Tanker flights [2][3]. So 16 launch, transfer propellant, land, refuel and refill propellant on the ground, and repeat.

For Mars launches, which is what Starship is mainly designed for, it's also 8-16 Tanker flights to fully fuel a Mars Starship. But SpaceX anticipates sending fleets of ships each synodic period (2 years), when Earth and Mars are closest. For a fleet of 10 Starships, that would be 10 launches of the Mars Starships, then 160 launches of Tanker Starships to fuel them.

You might debate whether Mars colonization is possible or desirable, but Starship and the high launch rate is designed for refueling Moon and Mars landing vehicles.

[1] https://en.wikipedia.org/wiki/Human_Landing_System

[2] https://en.wikipedia.org/wiki/SpaceX_Starship#Planned_launch...

[3] https://en.wikipedia.org/wiki/Starship_HLS

dark_star commented on Ask HN: Who is hiring? (July 2024)    · Posted by u/whoishiring
dark_star · a year ago
Apple | https://apple.com | AIML – Sr Full-stack Software Engineer, Data Operations | FULLTIME | ONSITE / HYBRID (3 days in office, 2 at home) | Seattle, WA, USA

https://jobs.apple.com/en-us/details/200551324/aiml-sr-full-...

Our team builds software to collect and annotate high-quality data used to train LLMs and other AI and ML models for products across Apple. We're looking for a senior software engineer who can design and build mission-critical, large scale, cloud-based distributed systems, web-based APIs and web apps, and can be the technical lead for projects within our team and across teams. The ideal person would have strong technical skills, strong collaboration skills, and strong people skills. See the job description above for details.

I'm the hiring manager, if you apply your application will come directly to me.

dark_star commented on China Is Losing the Chip War   theatlantic.com/internati... · Posted by u/2OEH8eoCRo0
dark_star · 2 years ago
More realistic and detailed information is available here: https://americanaffairsjournal.org/2024/02/a-new-era-for-the...

China may be behind the US, Taiwan, and Europe in semiconductor manufacturing, but they are developing workarounds and developing their own EUV machines and EDA tools.

dark_star commented on Thailand discovers nearly 15M tonnes of lithium   malaymail.com/news/money/... · Posted by u/amarant
vlovich123 · 2 years ago
Can you clarify about reuse? At least as far as batteries go, right now once it's in a battery it gets used up & then ends up in the trash [2]. There's no efficient / cost-effective way to extract lithium from spent batteries for reuse in new batteries. We might in the future but it would require some scientific advances + expensive commercialization to scale up. Even if in the future we do develop a mechanism, it could remain very expensive & not be practical until mining costs have gone up enough. Similarly, all batteries that have been consumed until that point are likely irrecoverable as they're in the waste stream & finding & collecting those batteries is unlikely to ever be economical.

[1] https://americanbatterytechnology.com/lithium-costs-a-lot-of...

[2] https://www.popularmechanics.com/science/energy/a42417327/li...

dark_star · 2 years ago
Check out Jeffrey "JB" Straubel's new company, Redwood Materials[1][2]. They recycle lithium-ion batteries. He was Tesla's former chief technology officer.

They are essentially a lithium mine that's using a very high quality ore, ground-up batteries.

There are other companies doing this as well. [3]

1. https://www.redwoodmaterials.com/

2. https://www.cbsnews.com/news/battery-recycling-redwood-mater...

3. https://li-cycle.com/technology/

dark_star commented on Ask HN: Who is hiring? (January 2024)    · Posted by u/whoishiring
rmac · 2 years ago
[edit]

Fixed twitter perms. FC farcaster

I also emailed you

dark_star · 2 years ago
Twitter says "@maceip can't be messaged." I don't know what you mean by fc. What's another way to reach you?

u/dark_star

KarmaCake day257October 15, 2016View Original