Sam Harsimony

Sam Harsimony

@harsimony.bsky.social

I write about opportunities in science, space, and policy here: https://splittinginfinity.substack.com/

1,029 Followers 523 Following 1,773 Posts Joined Nov 2024
16 hours ago

Dunno if it’s a skill issue but LLMs, while they make me a good deal more productive, do not make me wildly more productive. Mostly they let me do things I wasn’t going to do otherwise

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3 hours ago
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man uses GPT to guide him through sequencing his dying dog's DNA, identifying the mutated genomes, and developing a bespoke cancer mRNA vaccine

www.theaustralian.com.au/business/tec...

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1 hour ago

bsky.app/profile/hars...

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1 hour ago
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Post-Training 50x Faster We're announcing Trellis, the fastest open-source post-training code for Kimi K2 Thinking

**LoRA accelerates**

Open-source code to LoRA fine-tune all parameters of Kimi-K2-thinking!

www.workshoplabs.ai/blog/post-tr...

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4 hours ago

Agreed. Now apply this thinking to "crypto is for scams".

People should be free use technology. Instead, condemn people for using tech to do something bad, not the use of technology itself.

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1 day ago

dear fellow ai-likers.

give. it. a. fucking. rest.

you simply do *not* need to respond to ever bad take out there.

you know how we currently have the least powerful AI that will exist in the future?

we're currently seeing the *least bad ai takes* we will see in the future.

pace yourselves.

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1 day ago
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🧵New paper: "Lost in Backpropagation: The LM Head is a Gradient Bottleneck"
The output layer of LLMs destroys 95-99% of your training signal during backpropagation, and this significantly slows down pretraining 👇

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2 days ago

Characteristic velocity of 2.97 km/s! I think T1100G was at 2.7 km/s so pretty nice improvement.

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2 days ago
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The new record-holder for the highest strength fiber, and also the highest specific strength commercially available material, is Toray's T1200.
8 GPa Tensile Strength, 1820 kg/m^3, 12.4% better specific strength than the previous record-holder T1100 fiber:
www.toraycma.com/toray-develo...

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2 days ago
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Defuddle now returns Youtube transcripts!

Paste a YouTube link into defuddle·md to get a markdown transcript with timestamps, chapters, and pretty good diarization

...or if you just want to read it, try the new Reader mode in
@obsidian.md Web Clipper powered by Defuddle

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2 days ago

Are there any rocky planets large enough to make a chemical rocket infeasible but nuclear staged rockets would make launch feasible?

Thinking about that Fermi paradox argument that species can get "stuck" on a planet that's too large.

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2 days ago
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www.percepta.ai/blog/can-llm...

As a research lark at Percepta, Christos embedded a computer into an LLM, showed that it could solve the hardest Sudokus, and then as a side bonus built an exponentially faster attention

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3 days ago

Love this. A team with clarity about what it will take to apply AI to every domain: humility, trying stuff, and staying immersed in reality.

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3 days ago

Hopefully the Iran stuff will provide Xi with another example of how going to war for purely narrative reasons is a bad idea.

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3 days ago
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"The large diversity of neuronal properties is actually tightly regulated to ensure energy-efficient signaling in different contexts." www.biorxiv.org/content/10.6...

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3 days ago
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"Some relationships deepen when you tell the truth and some end" by Henrik Karlsson www.henrikkarlsson.xyz/p/going-your...

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3 days ago
YouTube
Ukraine Counters Fibre-Optic Drones with Lasers That Fry the Cables YouTube video by Suchomimus

Ukraine used a drone-mounted laser to destroy enemy fiber-optic drones. Fiber-optic drones are a challence bc they are unjammable.

Laser tech continues to percolate into the battlefield.

www.youtube.com/watch?v=m2-p...

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4 days ago

More in this thread:
x.com/michaelandre...

More skeptical take:
x.com/DanTurnerEva...

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4 days ago
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The First Multi-Behavior Brain Upload The Singularity has belonged exclusively to artificial minds, until now.

People underrate progress in brain emulations.

This team took a fly connectome, guessed neurotransmitters, and ran a model of brain/body in a simulated environment!

theinnermostloop.substack.com/p/the-first-...

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4 days ago
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Cantrip: On summoning entities from language in circles | deepfates With Cantrip, deepfates reimagines the fundamentals of language model agents. Available as a ghost library with generative test specification.

Today I announce Cantrip: On summoning entities from language in circles.

In this book I unify the paradigm behind base models, chatbots, coding agents, RLMs, and RL agents, through the metaphor of magic. Code is provided.

deepfates.com/cantrip

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5 days ago
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Do LLMs Benefit from Their Own Words?🤔

In multi-turn chats, models are typically given their own past responses as context.
But do their own words always help…
Or are they more often a waste of compute and a distraction?
🧵
arxiv.org/abs/2602.24287

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4 days ago

Related: "Take any extremely smart and experienced software engineer and put them into a new highly complex domain and have them solve a problem without giving them enough time to understand the problem. They will, without fail, deliver a solution of spectacular complexity"

bsky.app/profile/timk...

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4 days ago

Rest is critical to clear thinking. With rapid feedback cycles, need to pause and think about whether you're headed the right direction.

Better to go the correct direction slowly than wrong direction quickly.

thingofthings.substack.com/p/ideologica...

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5 days ago
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Low-wage work is a system. Coverage treats it like a collection of separate problems. I spent six years in low wage work. Media and policy debates tend to flatten something that's actually quite complex. Low-wage work isn't a job. It's a whole world with its own logic and norms.

Abi Olvera has a nice post on why low-wage work is different than it's portrayed in the media. And how well-meaning policies do more harm than good.

abio.substack.com/p/low-wage-w...

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5 days ago

My wish came true!

Seems that Taalas is not promising for edge devices.

It will be expensive and best suited to highly interactive applications with humans.

www.zach.be/p/taalas-is-...

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6 days ago
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Use preferences and agency for ethics, not sentience. A framework for what beings have moral value.

Since we're doing consciousness discourse, might I point out that we've been arguing about this for thousands of years with little progress?

Instead, people should propose real-world tests to determine moral patienthood:
splittinginfinity.substack.com/p/use-prefer...

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6 days ago

Excellent post!

Do all of these considerations apply to EMP's as well? So SolidGround would basically protect our grid from them too?

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6 days ago
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Breakthroughs rare and decreasing Innovation is trying stuff. Eventually you find something good enough.

splittinginfinity.substack.com/p/breakthrou...

splittinginfinity.substack.com/p/on-ai-scal...

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6 days ago

Recursive self improvement is still a concern! Especially as AI builds its own data sets and interacts with the real world.

But the idea that automated AI research plus an internet text dataset was going to take over the world was always silly.

See also ...

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6 days ago

Nice, this will finally put to rest worries about (limited-sense) recursive self-improvement and algorithmic progress.

You can watch the researcher produce significant improvements and then exhaust all the useful tricks.

Forcefully makes the point that data is the real bottleneck.

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