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arijun

1,769 karma · joined November 11, 2014

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arijun··on Bad Smart Watch Authentication
I wish there was a concept of paid expert reviews on Amazon/everywhere. A general review system works well (ignoring review gaming) when your concern is "Does this shirt fit?" or "What's the build quality?", but fails when one expert review of "This device is fundamentally unsound," gets drowned out by reviews on the more easily testable aspects ("The band is really comfortable!").

A great example would be when Benson Leung was testing USB-C cables on Amazon to see which were standards compliant.

arijun··on No-Panic Rust: A Nice Technique for Systems Programming
This happened to me too (Safari on iOS).

Here’s a archived link:

https://web.archive.org/web/20250204050500/https://blog.reve...

arijun··on A loophole used by Shein/Temu to ship packages to US tax-free (2024)
Are these laws so inflexible they can’t differentiate between a traveler and a shipping container?
arijun··on Why is zero plural? (2024)
No, you still need subject-verb agreement. Either “there are no books,” or the less common “there is no book.”

You might see the latter in the case of a definite subject: “Pass me the book on the subject.” “There is no book on the subject.”

arijun··on Blue Origin reaches orbit on first flight of its titanic New Glenn rocket
Didn't BO have a change in leadership in 2023 precisely because they were slow compared to SpaceX?

Edit: New Glenn was announced in 2016, compared to Starship's 2019, and they're approaching the finish line at around the same time. And I would say Starship was a far more ambitious project.

arijun··on Blue Origin reaches orbit on first flight of its titanic New Glenn rocket
I'm not sure how leaving the rest of the booster would make a propulsive landing easier. It seems like more complexity than just leaving some fuel in the tank, for less benefit. But ULA's Vulcan (which incidentally uses the same BE-4 engine as New Glenn) plans on using a helicopter to catch it's engines as they parachute down [1]

[1] https://www.planetary.org/space-images/smart

arijun··on Student rocket group shatters amateur space record
"Americans dominate the space industry" is presumably what they meant, and not inaccurate. On the other hand, even the American space industry uses metric.
arijun··on Show HN: Konga Beat – A custom track editor for Donkey Konga 2 and 3
For those wondering what Donkey Konga is, videogamedunkey has an entertaining video on it and DK Jungle Beat which used the same controller:

https://www.youtube.com/watch?v=MKjYYsZzyGA

arijun··on Could you pass this 8th grade test from 1912?
That’s how I read it as well
arijun··on Oakland's new school buses reduce pollution and double as giant batteries
Their point still stands, which is that a heat pump provides no advantage in the summer, so the article was wrong in indicating that it did. But yes, not all ACs can be run as a heat pump.
arijun··on MIT leaders describe the experience of not renewing Elsevier contract
What library are the researchers getting their access through now? Are they saying the MIT library bought digital copies of all those publications?
arijun··on Exposure to the Sun's UV radiation may be good for you
I think it’s pretty obvious from our evolution that we need some UV but not too much. In Africa, where we got a lot of sun, we evolved darker skin to prevent damage, but in the more norther latitudes, our skin tones lightened to take advantage of the otherwise insufficient sunlight.

I feel like a good rule of thumb would be, if you’re tanning, your body thinks you’re getting too much sun exposure for your current skin color.

arijun··on Molecule restores cognition, memory in Alzheimer's disease model mice
And what of these mouse studies?
arijun··on Jiff: Datetime library for Rust
A little off topic but does anyone know the purpose of dual licensing MIT and the UNLICENSE? It seems like the second should already allow anyone to do whatever they want…
arijun··on The Semmelweis myth and why it's not true (2018)
But seeing all this evidence to the contrary has made your belief in the theory stronger?
arijun··on HH70, the first high-temperature superconducting Tokamak achieves first plasma
I thought the second definition came about from continual misunderstanding of the word, like how literally no longer means literally.
arijun··on Waymo issues software and mapping recall after robotaxi crashes into a pole
Sounds cool in theory, but much less than useful in practice. The hardware and file formats are different enough that the data would be mostly useless to us (I work at a self driving-ish company).

The models are predicated a specific set of hardware ( which camera, what fidelity LiDAR, but even something as simple as “what’s the frame rate” can have a difference)

arijun··on Apple unveils 'Passwords' manager app at WWDC 2024
Is this just a standalone app for the existing password manager in settings, or is there more to it?
arijun··on Zany ideas to slow polar melting are gathering momentum
Is polar ice very sooty?
arijun··on Epoch Times CFO charged in $67M crypto money laundering plot
Not sure I follow your logic…
arijun··on Will we have a negative leap second? [pdf] (2022)
Will there be another solution for the desynchronization of SI days and solar days? It looks like there’s been about 25 seconds difference in the past 30 years or so.
arijun··on Princeton astrophysicists re-imagine world map (2021)
So can the Mercator projection (or any projection really). Why is the author complaining about the California-Japan distance when they can just recenter near there?

Point being, recentering is not the answer.

arijun··on Run VSCode and terminal on any iOS device
My fear is that such a regulation would end up being a net negative for the consumer. Apple would protect MacBook sales in other ways, e.g. crippling iPad hardware. Genuine question: if it was a net negative, would that still be worth it in your eyes?
arijun··on LO – simple WASM native language
Doesn’t tree sitter make it pretty easy to add highlighting?
arijun··on Utah Locals Are Getting Cheap 10 Gbps Fiber Thanks to Local Governments
Other way around, 100 Mbps down and 20 up.
arijun··on Neuralink's first in-human brain implant has experienced a problem, company says
I mean, yes, there was a problem, but if more issues don’t develop, this still seems to be a huge breakthrough for quadriplegics. The guy still uses it extensively when he has free time. And that’s assuming they can’t resolve the issue before the next subject tries it.
arijun··on Cold brew coffee in 3 minutes using acoustic cavitation
If you use a French press for cold brew, be aware that the harder you press, the more bitter it will come out.

I use a $5 nut milk bag instead, it lets me brew way more at once; I do 1/4 kilo grounds with 2 liters of water. It also has the benefit of reducing cafestol, which makes it healthier, according to some.

arijun··on Ghosts in the Machine 2 [video]
Very powerful imagery, but I had to look up what it was: a recruitment video for US Army Psyops

> The Army’s psychological warfare soldiers are using their brand of mental combat to bring in what the service needs: recruits

arijun··on Faer-rs: Linear algebra foundation for Rust
In a few fields of rust we are starting to see a convergence of lower level libraries that then can be shared amongst the higher level crates. For example, wgpu is seeing broad use across a bunch of libraries from game engines to UI libraries. This then allows the shared libraries to be made more robust, with more shared resources going into them.

Does anyone know how much of this is happening in the matrix/array space in rust? There are several libraries that have overlapping goals: ndarray, nalgebra, etc. How much do they share in terms of underlying code? Do they share data structures, or is anything like that on the horizon?

arijun··on USAF Test Pilot School, DARPA announce aerospace machine learning breakthrough
> non-deterministic artificial intelligence

Is it really non-deterministic, or is that just a misinterpretation of the opacity in deep learning algorithms? If the word choice isn’t a mistake, I wonder what the non-determinism adds.

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