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jacobn

1,876 karma · joined November 2, 2010

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jacobn··on Dark Sky iOS app will no longer work from Dec 31
From the blog post: "The Dark Sky API and website will continue to function until March 31st, 2023."

"Developers, Apple’s new WeatherKit API lets you incorporate Apple Weather forecast data into your app and is available for iOS, iPadOS, macOS, tvOS, and web."

Sorry for your loss :-/

jacobn··on Bank tells customers to disable updates and not upgrade to iOS 16
Ironically the PHP blog site may have gotten a lot more engineering TLC than the bank’s IT system.

Not necessarily more hours or $$ spent on it, but more care.

jacobn··on The Great American Tax Migration
Tangentially related: I wonder what will happen in SF/NYC when more of the office leases have expired and the corporate property tax base erodes? How will the cities fund themselves?

Presumably by hiking residential tax rates and converting office space to residential, but the latter could take a long time…

jacobn··on iOS 16 Available September 12th
I thought that was available via iTunes on Windows?
jacobn··on Stable Diffusion PR optimizes VRAM, generate 576x1280 images with 6 GB VRAM
Interesting that “del” helps here - could eg torch.jit.script/trace be more of a “sledgehammer” solution?
jacobn··on Losslessly Optimising Images
Shameless plug: https://recompressor.com/

Gives you a kb-vs-quality tradeoff graph.

A little over the top perhaps, but when you just need to do a couple of quick images… ;)

jacobn··on Exploring 12M of the 2.3B images used to train Stable Diffusion
The model was trained on 2.3B images, but how many TV shows are there to train it on?

There are quite a few books written, so maybe transfer learning from that?

jacobn··on Zuckerberg says FBI warning prompted Biden laptop story censorship
Not the person you asked, but both seem like they should be cause for concern…
jacobn··on Show HN: The Handler: My Eight Key Handheld “Dream” Keyboard
Neat device! How do you actually type on it? Chords? Separate layout shifting control? Other??
jacobn··on Mainnet Merge Announcement
Has there been any resolution to the issues raised in https://threadreaderapp.com/thread/1560070819518234624.html ?

My reading of the concerns is that USDC has effective fork veto, and that with PoS the chain would be subject to OFAC, which would effectively destroy it.

(my reading may well be incorrect / the concerns irrelevant)

jacobn··on The gathering crisis in the UK
I read something slightly different into your metaphor: it's about pro-social, positive sum games vs zero/negative sum games.

The mouse is participating in the positive sum game of joint savings, and the cat is robbing it blind (very negative sum as it's also robbing its future self).

There's a lot of that happening across society (healthcare, education, addiction-fueled tech companies, ...), and the people who do it oftentimes do end up (at least short term) better off (= rich), but we as a nation end up poorer (the whole negative sum thing).

There are however plenty of ways to become rich doing positive sum things (though lord knows it's harder than it looks), so there will be rich people who don't deserve the blame so to speak.

But the clearly visible, media-amplified cases will of course be cartoonish villains, all too eager to sell you the rope to hang them with so to speak.

jacobn··on DALL-E 2 vs. Midjourney vs. StableDiffusion mega thread
Midjourney’s results stand out as a lot more… artistic?
jacobn··on Ask HN: Anyone else feel trapped in FANG? How did you get out?
Timely: https://news.ycombinator.com/item?id=32537042 - raise your aspirations!

(Whatever that means. Or don’t. Apply any and all advice to your situation, don’t just take the advice as stated ;)

jacobn··on Google's Helpful Content Update
Sounds like a great update in intention - I just hope none of my sites get a false positive…
jacobn··on The ejector seats that fire through the floor
Additional quote from the article: “People will tell you that you don’t generally eject when you think you’re going to die, you eject only when you know you’re gonna die.”
jacobn··on The pervasive effects of C's malloc() and free() on C APIs
Would a PointerScope pattern work well here?

Functions that need to return dynamically sized things take a *PointerScope parameter, which is a struct with two function pointers: malloc() and close().

The api function uses the provided malloc, the caller calls close when they’re done with the returned data.

This can then be used with a bunch of calls (and by the caller itself), and then at the end all the allocations get freed with one simple call.

Obviously the PointerScope would internally need to keep track of what was allocated, so it’s a far from simple struct&code combo, but should provide decent user ergonomics?

Add a create() function too, to create a new PointerScope and you have an entire malloc/free replacing resource management paradigm! ;)

jacobn··on Show HN: Housing Affordability Calculator
Hopefully this makes the link clickable: https://rezach.github.io/house-affordability-calculator/
jacobn··on Instagram gets worse with dark patterns lifted from TikTok
Let the lifelong learning continue? ;)
jacobn··on Treadmill garbage collector by H. Baker
Yes
jacobn··on Physicists discover a “family” of robust, superconducting graphene structures
You need one that can handle higher than room temperature for it to be able to carry meaningful amounts of current at room temperature. See the link provided in parent for why this is.
jacobn··on Python 3.11 vs 3.10 performance
JVM and GraalVM?

https://www.graalvm.org/

jacobn··on A Response to Paul Krugman from a Keynesian Bitcoiner
A large fraction of the field of economics is about taking that tremendous force coming from the desire for personal gain (= greed if you will) and turning it into a public good (= the enormous abundance the markets have delivered) while avoiding some of the most egregious harms (= "externalization of costs, privatization of profits" = exploitation, pollution, overfishing, etc, etc).

What I believe OP is talking about is how the blockchain made it possible to incentivize people to mine, thereby delivering the service of the public good of the blockchain.

Sure, all of those individual points are of perhaps debatable value, but he acknowledges that while maybe mining or staking aren't quite it yet, the fundamental blockchain tech still enables decentralized coordination and the creation of a public good through private incentive.

Which is no small feat.

jacobn··on Accelerated PyTorch Training on M1 Mac
Grouped convolutions can't really run faster than groups * conv(ch/group) and I believe that's close to where they're at?

Note that for ch<O(512) (varies by GPU & hw) you tend to be memory-transfer-speed limited, not compute limited.

So unfortunately depthwise convolutions end up having terrible performance.

jacobn··on Ask HN: Why do women live longer than men?
Mitochondrial DNA is maternally inherited = improvements that benefit men are lost, improvements that benefit women are inherited?

(There’s probably a lot more to it, and this may not be a factor at all)

jacobn··on Show HN: I built a site that summarizes articles and PDFs using NLP
Neat site! Random suggestion: how about taking a text source and turning it into an expandable, nested bullet list?

So it would take the long text, bulletize the main points, and then you can tap to expand any of them to see the details, recursively.

Just a thought…

jacobn··on Exposure to 835MHz RF-EMF induces hyperactivity and demyelination in mice (2017)
“C57BL/6 mice were exposed to 835 MHz RF-EMF at a specific absorption rate (SAR) of 4.0 W/kg for 5 hours/day during 12 weeks.”

That’s a pretty high exposure?

jacobn··on Primer: Statistical Armour
I'm wondering why tank armor is (appears to be) basically flat, when the AT warheads appear to be based on creating that super-heated jet, optimized for striking a flat surface?

Why not stack a few layers of corrugated steel/ceramic plates to try to split the jet apart?

Basic theory would be to present the projectile with a surface that has drastically different amounts of resistance across the front of the projectile, in the hope of destabilizing it & the jet it creates.

I guess it would make the armor quite thick, but with varying density/composition it may not end up that much heavier?

(And maybe it just wouldn't work ;)

jacobn··on Tesla FY2021 Earnings Result
They effectively had a long production outage for those models when they upgraded to the most recent version, with the steering yoke. Wait times were on the order of 6-12 months.
jacobn··on Why static languages suffer from complexity
They usually save you from that particular pitfall, but not always of course.

Static vs dynamic makes for such difference in the detailed workflow, both in terms of changing existing code & in terms of writing new/(more) from scratch code, yet they can both be quite fruitful, and can both be abused in absurdum.

It seems like people naturally fall into one of the two camps (either by personality or by training), and the other side just seems kind of insane: "how can you even work that way!?". Then culture and idioms emerge over time and strengthen the tribalism.

I've gone back and forth between the two over the course of my career, and it's quite a mind-shift when switching, with a fair bit of pain involved ("but it would be so easy to do this in [old language]", or "what the hell is this garbage anyway!?") and then eventually it settles in and it's not all painful, all the time ;)

(Going back and forth between Scala and Python right now, so this hit a bit of a nerve)

jacobn··on Basic income would not reduce people’s willingness to work
This study and the discussion here reminds me of https://slatestarcodex.com/2014/12/12/beware-the-man-of-one-... - basically whenever you have a financial or politically motivated topic of study, you'll get numerous serious seeming studies supporting position X, then a thorough debunking of X, then a resounding rebuttal, then more studies taking other positions, those getting debunked & rebutted, meta studies trying to aggregate & tease out who's actually correct, those getting debunked & rebutted, and the fight goes on.

My concern with UBI is more that we're unlikely to be able to fix it if it's actually terrible - once in place, handouts tend to become sacrosanct regardless of efficacy (I'm sure that are exceptions that prove the rule ;) - and it is stupendously expensive.

How about Universal Basic Assistance instead?

We tend to make government assistance be "hard shell, soft center", i.e. hard to qualify for, but once you're in, it's all gravy, unless you do something silly like get back on your feet (see unemployment & disability).

What if we instead switched to a "soft shell, firm center" approach and made it really easy to access assistance funds, but they e.g. got gradually reduced over time as you tap into them? And perhaps you have some skin in the game with a required personal emergency fund? And perhaps you owe some of the assistance $$ back, so that the average person "pays for themselves" over the course of their life?

Just spit-balling. I'm sure there are tons of problems with such an approach as well. But maybe it would still be quite useful for the recipients, and a lot more palatable for the tax payers = more reasonable to actually implement?

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