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Fei-Fei Li: Spatial intelligence is the next frontier in AI [video]

https://www.youtube.com/watch?v=_PioN-CpOP0
56•sandslash•1d ago•12 comments

Trans-Taiga Road (2004)

https://www.jamesbayroad.com/ttr/index.html
92•jason_pomerleau•5h ago•35 comments

Third Interstellar Object Discovered

https://minorplanetcenter.net/mpec/K25/K25N12.html
62•gammarator•3h ago•21 comments

Whole-genome ancestry of an Old Kingdom Egyptian

https://www.nature.com/articles/s41586-025-09195-5
79•A_D_E_P_T•6h ago•34 comments

Nano-engineered thermoelectrics enable scalable, compressor-free cooling

https://www.jhuapl.edu/news/news-releases/250521-apl-thermoelectrics-enable-compressor-free-cooling
53•mcswell•2d ago•20 comments

Exploiting the IKKO Activebuds “AI powered” earbuds (2024)

https://blog.mgdproductions.com/ikko-activebuds/
485•ajdude•16h ago•183 comments

Next month, saved passwords will no longer be in Microsoft’s Authenticator app

https://www.cnet.com/tech/microsoft-will-delete-your-passwords-in-one-month-do-this-asap/
70•ColinWright•2d ago•66 comments

ASCIIMoon: The moon's phase live in ASCII art

https://asciimoon.com/
186•zayat•1d ago•64 comments

Conversations with a Hit Man

https://magazine.atavist.com/confessions-of-a-hit-man-larry-thompson-jim-leslie-george-dartois-louisiana-shreveport-cold-case/
43•gmays•1d ago•1 comments

That XOR Trick (2020)

https://florian.github.io//xor-trick/
84•hundredwatt•2d ago•42 comments

Show HN: CSS generator for a high-def glass effect

https://glass3d.dev/
270•kris-kay•14h ago•83 comments

Gmailtail – Command-line tool to monitor Gmail messages and output them as JSON

https://github.com/c4pt0r/gmailtail
45•c4pt0r•6h ago•6 comments

Couchers is officially out of beta

https://couchers.org/blog/2025/07/01/releasing-couchers-v1
180•laurentlb•12h ago•75 comments

The uncertain future of coding careers and why I'm still hopeful

https://jonmagic.com/posts/the-uncertain-future-of-coding-careers-and-why-im-still-hopeful/
27•mooreds•4h ago•38 comments

Vitamin C Boosts Epidermal Growth via DNA Demethylation

https://www.jidonline.org/article/S0022-202X(25)00416-6/fulltext
78•gnabgib•10h ago•25 comments

What to build instead of AI agents

https://decodingml.substack.com/p/stop-building-ai-agents
136•giuliomagnifico•6h ago•87 comments

A Higgs-Bugson in the Linux Kernel

https://blog.janestreet.com/a-higgs-bugson-in-the-linux-kernel/
87•Ne02ptzero•11h ago•7 comments

Features of D That I Love

https://bradley.chatha.dev/blog/dlang-propaganda/features-of-d-that-i-love/
110•vips7L•13h ago•75 comments

AI note takers are flooding Zoom calls as workers opt to skip meetings

https://www.washingtonpost.com/technology/2025/07/02/ai-note-takers-meetings-bots/
134•tysone•12h ago•139 comments

Websites hosting major US climate reports taken down

https://apnews.com/article/climate-change-national-assessment-nasa-white-house-057cec699caef90832d8b10f21a6ffe8
309•geox•9h ago•149 comments

The Zen of Quakerism (2016)

https://www.friendsjournal.org/the-zen-of-quakerism/
99•surprisetalk•3d ago•79 comments

The Evolution of Caching Libraries in Go

https://maypok86.github.io/otter/blog/cache-evolution/
97•maypok86•3d ago•24 comments

Demonstration of Algorithmic Quantum Speedup for an Abelian Hidden Subgroup

https://journals.aps.org/prx/abstract/10.1103/PhysRevX.15.021082
3•boilerupnc•2h ago•0 comments

Abrego Garcia Was Beaten and Tortured in El Salvador Prison, Lawyers Say

https://www.nytimes.com/2025/07/02/us/politics/kilmar-abrego-garcia-el-salvador-trump-deportation.html
7•perihelions•21m ago•0 comments

Gene therapy restored hearing in deaf patients

https://news.ki.se/gene-therapy-restored-hearing-in-deaf-patients
317•justacrow•15h ago•77 comments

LLMs as Compilers

https://resync-games.com/blog/engineering/llms-as-compiler
11•kadhirvelm•4h ago•11 comments

Sony's Mark Cerny Has Worked on "Big Chunks of RDNA 5" with AMD

https://overclock3d.net/news/gpu-displays/sonys-mark-cerny-has-worked-on-big-chunks-of-rdna-5-with-amd/
77•ZenithExtreme•14h ago•80 comments

I'm a physicist by trade, not by training, and that matters

https://csferrie.medium.com/im-a-physicist-by-trade-not-by-training-and-that-matters-70cd0e66b2c8
4•MaysonL•1d ago•1 comments

Physicists Start to Pin Down How Stars Forge Heavy Atoms

https://www.quantamagazine.org/physicists-start-to-pin-down-how-stars-forge-heavy-atoms-20250702/
54•jnord•9h ago•3 comments

MindsDB (YC W20) is hiring an AI solutions engineer

https://job-boards.greenhouse.io/mindsdb/jobs/4770283007
1•adam_carrigan•12h ago
Open in hackernews

The Lisp in the Cellar: Dependent types that live upstairs [pdf]

https://zenodo.org/records/15424968
88•todsacerdoti•1mo ago
Downloadable: https://zenodo.org/records/15424968/files/deputy-els.pdf

Comments

droideqa•1mo ago
Sadly "deputy clojure" on Google brings no results...

The only hint is this repo[0] referenced in the paper.

[0]: https://gitlab.com/fredokun/deputy

agumonkey•1mo ago
Pretty readable code
reuben364•1mo ago
Thinking out aloud here.

One pattern that I have frequently used in EMACS elisp is that redefining a top-level value overwrites that value rather than shadowing it. Basically hot reloading. This doesn't work in a dependently typed context as the type of subsequent definitions can depend on values of earlier definitions.

    def t := string
    def x: t := "asdf"
    redef t := int
redefining t here would cause x to fail to type check. So the only options are to either shadow the variable t, or have redefinitions type-check all terms whose types depend on the value being redefined.

Excluding the type-level debugging they mention, I think a lean style language-server is a better approach. Otherwise you are basically using an append-only ed to edit your environment rather than a vi.

extrabajs•1mo ago
I don’t see the connection to dependent types. But anyway, is ‘redef’ part of your language? What type would you give it?
reuben364•1mo ago
I just wrote redef to emphasize that I'm not shadowing the original definition.

    def a := 1
    def f x := a * x
    -- at this point f 1 evaluates to 1
    redef a := 2
    -- at this point f 1 evaluates to 2
But with dependent types, types can depend on prior values (in the previous example the type of x depends on the value t in the most direct way possible, as the type of x is t). If you redefine values, the subsequent definitions may not type-check anymore.
extrabajs•1mo ago
I see what you mean. But would you not experience the same sort of issue simply from redefining types in the same way? It seems this kind of destructive operation (whether on types or terms) is the issue. As someone who's used to ML, it seems strange to allow this kind of thing (instead of simply shadowing), but maybe it's a Lisp thing?
resize2996•1mo ago
> EMACS elisp

I used this to write the front end for an ATM machine.

wk_end•1mo ago
I've fantasized about some kind of a dependently-typed Smalltalk-like thing before, and in those fantasies the solution would be that changes would be submitted in the form of transactions - they wouldn't be live until you bundled them all together into one big change that would be fully type-checked, as you describe.
kscarlet•1mo ago
The only option that you described is called "hyperstatic global environment".

And it is called that for a reason, it is not very dynamic :) and probably too static to the taste of many Lisp and all Smalltalk fans.

dang•1mo ago
Any URL for this that we can open in a browser (as opposed to the dreaded "Content-Disposition: attachment")?
Jtsummers•1mo ago
https://zenodo.org/records/15424968 - This at least takes you to a webpage where you can view the paper. If you select to download it, it still downloads of course instead of just opening in the browser.
dang•1mo ago
Thanks! I've switched to that above, and put the downloadable link in the top text.
reikonomusha•1mo ago
Related context: The 2025 European Lisp Symposium [1] was just wrapped a few hours ago in Zurich. There was content on:

- Static typing a la Haskell with Coalton in Common Lisp

- Dependent typing with Deputy in Clojure (this post)

- The Common Lisp compiler SBCL ported to the Nintendo Switch

- Common Lisp and AI/deep learning

- A special retrospective on Modula and Oberon

- Many lightning talks.

[1] https://european-lisp-symposium.org/2025/index.html

no_wizard•1mo ago
I feel like Lisp would be an ideal language for AI development. Its exceedingly good for DSL development and pattern matching. Its already structurally like math notation as well, which I would think would lend itself to thinking how models would consume information and learn
rscho•1mo ago
Well... believe it or not, some have thought of using lisp for AI for quite some time. ;-)
froh•1mo ago
indeed.

Peter Norvig, 1992

Paradigms of AI Programming: Case Studies in Common Lisp

https://g.co/kgs/hck8wsE

https://en.m.wikipedia.org/wiki/Peter_Norvig

it's no coincidence Google is actively maintaining sbcl, either.

Zambyte•1mo ago
Why not go all the way to the source? John McCarthy coined the term "artificial intelligence", and then invented / discovered LISP in pursuit of it in the 1950s :D
ayrtondesozzla•1mo ago
https://quantumzeitgeist.com/lisp-and-the-dawn-of-artificial...

Lisp was the de facto language of artificial intelligence in the U.S. for many years. Apparently Prolog was popular in Europe (according to Norvig's PAIP)

fithisux•1mo ago
Impressive.