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marojejian

3,428 karma · joined June 6, 2011

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marojejian··on Are brain-scanning hard hats a safety dream—or a privacy nightmare?
OK, I changed it back to the original headline from the site: "Are brain-scanning hard hats a safety dream—or a privacy nightmare?"

https://www.science.org/news

marojejian··on Brain-Scanning Hats Are a Privacy Nightmare
Took the liberty of removing the question here, since the answer is pretty obvious.
marojejian··on The reason(s) nothing gets built in San Francisco
Archive: https://archive.is/qiQMo

Good quality article. Provides a nice summary of the issues, and also what kind of improvement is expected, given certain changes.

marojejian··on AI Article Reviews Dominate Human Peer Reviews at Their Best [pdf]
And of course in the time it took to publish this the frontier has moved significantly.
marojejian··on How Do Fungi Keep the Planet Healthy?
I gather that the claims about mycorrhizal networks have been overstated or at least the evidence is limited. e.g. see this episode of Science Fictions

https://sciencefictionspod.substack.com/p/episode-91-entangl...

But even in the most conservative reading of the evidence, there is a lot of amazing ecology going on here. And the economic analogy seems apt. I buy her argument that it's worth investing a lot more to explore these interactions.

Stepping back - evolution has had a vastly greater amount of time to deal with economic & game theoretic situations than we have. Learning more about what type of strategies have survived the test of time could be very important. Especially as we are currently at the beginning of an explosive change in our own ecosystem (and I ain't talking about biodiversity or climate change...)

marojejian··on We Know How to Fix Homelessness. Look at Denver
gift link:

https://www.nytimes.com/2026/10/13/opinion/homelessness-unho...

And if you deem creating an account using a fake email is too high a price to pay for quality human journalism:

https://archive.is/tpiy2

Calling this a "fix" is ambitious, since these measures don't address the long-term issues. But these do seem like sensible measures with a big positive impact. It demonstrates that there's a lot we can do that doesn't require radical change.

marojejian··on How Do Cuttlefish Hide?
gift link: https://www.nytimes.com/2026/10/12/science/cuttlefish-brain-...

And if you deem creating an account using a fake email is too high a price to pay for quality human journalism: https://archive.is/VlFlc (also you will miss the videos, which in this case are worth the price of admission, IMHO)

paper: >Generation of a transgenic cephalopod https://www.biorxiv.org/content/10.64898/2026.09.23.753964v1

I must say I am still amazed and mystified at how cephalopods to camouflage so well, especially because they must mimic a perspective much different from the one they have access to from their eyes (or skin).

marojejian··on 'Breathtaking,' 'Devastating': Mathematics reels after new OpenAI release
I get this comment so often when I post NYT gift links now, I guess I should always include the archive link to prevent them:

https://archive.is/ANnky

marojejian··on 'Breathtaking,' 'Devastating': Mathematics reels after new OpenAI release
Gift link: https://www.nytimes.com/2026/10/08/science/mathematicians-re...

>If a human did this, it would be an instant Fields Medal, no questions asked.

- Alex Kontorovich, chair of the department of mathematics at Rutgers

marojejian··on Prehistoric global migration of vanishing gut microbes with humans
Found via NYT. Gift link: >Was the Human Gut Healthier in Ancient Times?

https://www.nytimes.com/2026/10/07/science/microbiome-evolut...

marojejian··on Assisted Death Is Not a Choice of Last Resort in Canada
Thanks for the comment. If true, that implies they are worse than lazy...
marojejian··on Are Babies Conscious?
gift link: https://www.nytimes.com/2026/10/05/science/consciousness-bra...

Interesting. This increased my credence that newborns are conscious / sentient (which had been somewhat low).

marojejian··on Assisted Death Is Not a Choice of Last Resort in Canada
gift link: https://www.nytimes.com/2026/10/05/opinion/medical-assistanc...

Interesting to consider how to properly draw the line on when to allow this.

It argues that psychological counseling should be a key step, and is not in Canada. If true, the point seems strong.

marojejian··on AI will not make mathematicians obsolete
This post increases my worries about the revolution we are in the early stages of.

Please, someone correct me in my thinking, since I should hope this Princeton professor of math is more intelligent than I:

He asserts:

Today ML results are not "creative" but come from:

>a search guided by ideas developed by human mathematicians, but far more exhaustive than any search they could carry out unaided.

Therefore:

>There are many risks associated with the uses and misuses of AI. The extinction of mathematics as a human endeavor is not among them.

How does behavior today guard against risks tomorrow? Has he considered the trend from imagenet to today, or from LLMs to today?

Are there any hurdles that prevent against ML models being "creative" (especially as creativity can be thought of as a search process)?

A couple of years ago the goalposts were something like:

"It sounds like the LLM is saying something meaningfull, but it actually doesn't"

Today the goalpost is apparently:

"LLM solved one of the hardest outstanding math problems, but it did it by assuming a constraint. We now, post-hoc, think that was a bad constraint to allow"

Now, I'm not going to assert that human math is obsolete based on this. But asserting that there is no risk of it becoming obsolete based on this evidence does not seem to me to be "intelligent" let alone worthy of ivy league tenure.

marojejian··on When Does Automating AI Research Produce Explosive Growth? [pdf]
found via Ramez Naam https://www.rameznaam.com/p/471bbae4-1163-4048-944b-18f8b0bf...
marojejian··on Can AI self-improvement overcome diminishing returns?
Quality post. It boils down to a lot of trend measuring, which is not reliable. But I can't think of a better method.

I'm assuming this is the same guy who wrote the Nexus series, which was amazing BTW.

marojejian··on Cooperating Against Catastrophe
As covered in NYT:

A Way Out of the A.I. Arms Race? https://www.nytimes.com/2026/09/30/world/europe/ai-arms-race...

For many reasons, Betteridge's law applies to the NYT piece.

But nevertheless, it worth encouraging all efforts to address the systems dynamic.

and the core of their recommendation, transparency, is key towards improving the quality of the outcome. The more open, broadly distributed, and cheap ML gets, the better.

marojejian··on A better path for AI with Max Tegmark
I don't agree with Tegmark on everything, but I don' agree with anyone on everything, especially regarding ML. That said, my mom asked me to today who I would trust regarding AI safety, and after thinking about it, I can't think of anyone better than Max.

This video highlights why. He hits a number of key points about what we need to do:

1) develop better models (e.g. ones focused on program synthesis w/ verification) 2) Reduce the concentration of economic value (e.g. promote open source models). 3) Avoid deliberately creating AGI. The benefits of ML without it are still massive. Doubt this is feasible game theoretically long-term. But worth promoting, since it's valuable even if we just slow things a bit.

I'm happy he's getting some attention, and wish he got more.

marojejian··on AI Companies Are in a Race Against Time
>The total amount of incremental AI revenue—from their AI business ... to just break even in the next 10 years is roughly equal to all the revenue these firms earned in the past 10 years.

There needs to be a dramatic acceleration in profit. Yet, the headwinds seem to be increasing: OW models, Infrastructure-building limitations, liability...

marojejian··on What is the AI capex breakeven rate?
There needs to be a dramatic acceleration in profit. Yet, the headwinds seem to be increasing: OW models, Infrastructure building limitations, liability...
marojejian··on What archaeology reveals about the rise of all-powerful rulers
The key points of this align well with The Dictator's Handbook:

https://en.wikipedia.org/wiki/The_Dictator%27s_Handbook

Autocrats succeed to the degree they can gain power while having to please as few other people as possible.

marojejian··on Scaling Discovery Through Test-Time Communication
This is one big aspect of the ML revolution that I'm uncertain about. Clearly the future system of how models communicate will have a huge impact on their effectiveness and the form the world society will take. The older I get the more I appreciate how the collective intelligence and society of humans matters more than the level of individual idealized intelligence.

Only working together can we build a cheap toaster: https://en.wikipedia.org/wiki/Thomas_Thwaites_(designer)

I buy the Sapiens argument that our dominance is due to being more social, than being "smart" individually.

On the other hand big dysfunctional group can hobble the effectiveness of even its best members (I bet I don't need to cite an example for you).

But the opportunity is far less constrained than this. The space of human societies is limited to agents who all have similar structures and relaitvely fixed "selves" and goals. ML agents can be as diverse as we like, can change their own nature on a dime, and can have any type of self "identify" or goals imaginable. They are not constrained by any "human nature" to only cooperate in certain ways, but can dynamically pursue any strategy at all.

Perhaps there is a natural convergence or local equilibrium with more stable and uniform identities. But I'd bet on the other side - that there will be an insanely diverse and dynamic society that will be able to coordinate in ways that we can neither compete with nor conceive of. Cryptic message boards are just the first drop in the deluge.

marojejian··on Aging may be a program, not a breakdown
Previous post: https://news.ycombinator.com/item?id=49413305
marojejian··on Economics Nobel Laureates' Letter Supporting the California Billionaire Tax [pdf]
While the concept of progressive wealth taxation is very important and good, executing on such taxes is very hard.

I'm skeptical this bill is actually a positive step in the overall campaign. That said, I think the more discussion about the concept, the better.

marojejian··on The Working Class Face a 'Class Ceiling' in Elite Occupations
Gift Link: https://www.nytimes.com/2026/09/18/business/class-barrier-ac...

Paper: https://www.econometricsociety.org/publications/econometrica...

This seems on the same spectrum with research showing the biggest predictor of success in children is social connections with the more affluent: https://www.sciencenews.org/article/friendships-rich-people-...

I generally buy this, and think the class or networkworking view is a much more productive one to combat inequality, vs. tribal identity distinctions.

At some level of course, we are a social species and those who acquire better connections will always outperform, often for reasons we want to endorse (e.g. they will create better connections among ideas).

But networks can also serve as self-perpetuating systems that impede their intended function. e.g. base nepotism, or Science advancing "one death at a time." There's a lot of opportunity to reduce these effects.

marojejian··on The Next Gene-Editing Technology May Also Be the Oldest
Gift Link: https://www.nytimes.com/2026/09/17/science/crispr-gene-editi...

While this seems overhyped in terms of it's applicability (wraps around DNA vs. actually editing it), it's still really cool.

The ancestor of CRISPR was developed by viruses over 4 billion years ago.

It's crazy how early life arose (the crust only formed 4.5 billion years ago). And one can only imagine how much insane stuff happened that we can never glimpse.

marojejian··on New Species of Cat Discovered for First Time in a Century
he smol but feisty

Gift link: https://www.nytimes.com/2026/09/18/science/tilcayo-new-cat-s...

marojejian··on A.I.'S Effect on the Work Force Is Showing Up in Wages
Gift link: https://www.nytimes.com/2026/09/16/business/ai-raises-hiring...

>Liminal Capital, an investment firm, estimated in August that about a third of jobs appear to be more exposed to substitution than augmentation by A.I. In those occupations, new hires among workers ages 22 to 25 have fallen by a third since 2021, even as firings have barely budged.

Their paper: https://www.liminal-capital.com/documents/liminal-ai-jobs-im...

I'm skeptical of the quality/bias of this, given the source. That said, the story makes sense to me at a high level. Even without the current ML expansion, general trends in automation and maturity & consolidation of the tech sector seemed to be generating a similar effect.

marojejian··on Charts built for Chat
Nice to see something built for AI that's supporting both openness and interpretablilty.
marojejian··on Limits and opportunities of AI reviewers: Reviewing the reviews of Nature papers
>On a composite of all three dimensions, a reviewing agent powered by GPT-5.2 scores above each paper's top-rated human reviewer (60.0% vs. 48.2%, p = 0.009)

note this was GPT-5.2

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