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zakary commented on China proposes 5-second 0-100 km/h acceleration limit on vehicles   carnewschina.com/2025/11/... · Posted by u/doener
SilverElfin · a month ago
That’s pretty lame. Fast cars can be fun to drive, and the acceleration is the fun part, not their top speed or whatever. Note that this limit they’re proposing is more of an annoyance - it’s something you have to manually disable each time you start the car. It’s the same frustrating nonsense we saw with mandatory start stop that you cannot disable permanently.

Other parts of the proposal relating to better battery safety and warnings on battery issues seem like a positive change.

But then there’s this:

> The draft also addresses driver assistance systems, requiring vehicles with such features to verify through biometric recognition or account login that drivers have completed proper training before allowing continued operation.

This just looks like a surveillance tool. Soon we’re going to see cars normalizing facial recognition and uploads of that information. In China, this will be abused by the CCP for all their usual oppressive stuff. But I worry that this will become normal in cars sold elsewhere too.

zakary · a month ago
Definitely a lot of potentially very serious and important downsides to this.

I’m trying to think of any possible upsides to this.

- harder for unlicensed people, eg kids, to drive a car and hurt themselves or someone else. - harder to steal a car if you’re not an approved driver, regardless of what you do with a copied key fob. - potentially easier to resolve insurance disputes - harder for people to commit premeditated crimes using cars (eg getaway driver to a robbery)

That said, these things only really happen if almost all cars on the road have this “feature”. Which means if all new cars in china must have this, then for at least 20 years after introduction, people wanting to skirt the law/surveillance will just use older cars.

So then in the end everyone loses out except for the people this is purportedly target towards, who just go around it.

zakary commented on Voyager 1 breaks its silence with NASA via radio transmitter not used since 1981   smithsonianmag.com/smart-... · Posted by u/elsewhen
justinclift · a year ago
> You can get eternal licenses (or an outright sale of rights), if you are willing to pay.

Adobe Creative Cloud (among many others) doesn't have that option.

zakary · a year ago
I have worked with some people in the defence industry who got just that from Adobe and a few similar vendors. They had to negotiate with adobe and sign NDAs both ways, and they payed through the nose for it. But you can do it.
zakary commented on Critical Mass and Tipping Points   fs.blog/critical-mass/... · Posted by u/rzk
jongjong · a year ago
Interesting read. It puts into context the importance of luck in life. There is a group of people who become oppressed to the point that it becomes unbearable and they have a choice either to die by revolting too early without critical mass, or by letting themselves starve from the increasing weight of the oppression. In the case of the opioid epidemic, people have been/are driven to insanity and commit suicide by drug overdose.

You really don't want to be in that early oppressed group.

IMO, it's because human systems are over-systematized and over-regulated. It always causes oppression. Some group of people has to pay dearly for all the structures that are imposed on them. Laws and social structures essentially never work for everyone equally; at scale, many laws systematically steal wealth, power and opportunities from one group and give it to another.

Even the most well-meaning laws basically end up stealing from certain groups of people for the benefit of others. Especially on a complex global playing field. Just look at Africa. It's not their fault that they're stuck in poverty... Western powers keep installing corrupt dictators by sponsoring coups. The dictators then saddle their citizens with debt. The people have little say. Then basically they become so poor that they are forced to immigrate to the rich countries which are causing the problems... And for the most part, join the lower class of that society where the oppression continues under a different form.

They get to be oppressed in this slightly different way while also contributing to the continued oppression of their people back in their home countries through the gift their cheap labor to their oppressors in their new country, which enriches them. This is made possible by a combination of ignorance and intergenerational low self-esteem inflicted upon them by their oppressors as a result of manipulation of the political systems of their previous countries.

IMO, US leftwing politics are extremely short sighted with their approach to immigration because they are building a critical mass of oppressed people in the US. Some people will be grateful initially but the gratefulness will soon turn to disdain once the new reality sinks in.

zakary · a year ago
Better never means better for everyone. And it always means worse for some.
zakary commented on Israel’s Pager Attacks Have Changed the World   nytimes.com/2024/09/22/op... · Posted by u/kawera
zakary · a year ago
What’s really needed is some way you can easily tell that a device has been tampered with, but which is also extremely difficult to bypass. And also where even if the OEM was in on the scheme, you could still tell. Like how a hash is used to tell if someone made changes to a piece of software. For consumer products this is a nonstarter because companies will almost never fully divulge info about all the parts of a device required for this.

For defence product where almost everything is fully specified by the customer, it might be possible. If you know all the components in a device, and you can prove they are all genuine, then you can prove the whole device is genuine.

Engraved hashes on every part comes to mind, but that would be ungainly to validate and fairly easy to bypass by simply copying codes from one device to another.

zakary commented on Ares Industries – Building low-cost cruise missiles   ycombinator.com/launches/... · Posted by u/carabiner
jojobas · a year ago
Is there any reason not to use much cheaper piston engines? If you're going for saturation of and defenses you don't need speed that much, you only need the ability to hit the target if not shot down.
zakary · a year ago
I imagine speed and simplicity. There’s a lot more things that need maintenance on a piston engine
zakary commented on GE Aerospace Successfully Develops and Tests New Hypersonic Dual-Mode Ramjet   geaerospace.com/news/pres... · Posted by u/NoRagrets
paganel · a year ago
To what (I guess future) planes would this engine be assigned to? Is there a new US project after the F35?
zakary · a year ago
Missiles and Drones. There’s essentially no viable use case for a hypersonic manned jet
zakary commented on Crystal Fragment Turns Everything You See into 8-Bit Pixel Art   yankodesign.com/2024/07/0... · Posted by u/msephton
rbanffy · a year ago
In order to be properly 8-bit it’d also need to round the colours to some quantised palette. The physics of that would be much, much more interesting.

I’m guessing that Atari 8-bit computers would be the easiest, followed by pure 8 and 16-colour RGB and RGBi palettes. To do the Commodore 64 palette would be a very interesting materials science project.

And then do that with variable ones, like the Commodore 16, where you have an arbitrary subset of a quantised color space.

Try that without a power supply.

zakary · a year ago
It just so happens that one of my colleagues just finished a PhD creating materials which pretty much do exactly this; converting a relatively broad spectrum of light into a much narrower band of light. I’ve seen them in the lab where it’s colourless and clear to start with, and then it will convert any incident light in the blue range into a much narrower band of a specific blue colour. He has recipes for just about any colour, even into UV and IR bands. Not sure what the real world applications are though, maybe something to do with coatings for photovoltaic cells to increase efficiency
zakary commented on Exploring Our Sense of Touch from Every Angle   hms.harvard.edu/news/expl... · Posted by u/XzetaU8
zakary · a year ago
Human level touch/somatosensory system is one of the key breakthroughs needed to make humanoid robots truly useful.

As this articles details, touch is a lot more complex than simply “is there force on this spot” and the sheer amount of information our bodies process subconsciously throughout our everyday activities is staggering.

Ever wonder why it’s so hard to use a pen to write something if your hands are too cold, or if your arm has “fallen asleep”? Robots are in that state all the time, and we have to use a lot of fancy tricks to get them to manipulate objects without being able to feel them very well.

Whoever can solve this problem, with a product which is relatively cheap, reliable, and high resolution, will be creating a multibillion dollar opportunity for themselves.

As someone who works in robotics, I’d put my money on arrays of MEMS or microfluidic channels embedded inside a gel membrane.

zakary commented on Unexpected anti-patterns for engineering leaders   review.firstround.com/une... · Posted by u/jbredeche
Oarch · 2 years ago
"a team of a couple hundred people. That team might cost $50 to 100 million in salary a year"

100m between 200 is 500K average salary. Seems exceptionally high.

zakary · 2 years ago
I’m guessing the author is counting himself as CTO as part of that. $60 million for the CTO and his posse of senior managers and VPs, and the other $40m split between 180 non management engineers for $220k ish each. Still stupidly high costing now matter how you slice it.
zakary commented on CFPB Takes Action Against Coding Boot Camp BloomTech and CEO Austen Allred   consumerfinance.gov/about... · Posted by u/Jimmc414
jdp23 · 2 years ago
Paul Graham, 2020: "Lambda School will teach you programming faster than most colleges. And it not only works well remotely, but was designed to from the start." [1]

Paul Graham, 2022: "Of 1277 students who graduated from Lambda School in 2020 and sought jobs, 950 got them, for a placement rate of 74.8%.

(Lambda's weirdly dedicated haters will be happy to hear that these numbers were audited by an accounting firm.)" [2]

[1] https://twitter.com/paulg/status/1254809755681525762

[2] https://twitter.com/paulg/status/1254809755681525762

zakary · 2 years ago
Having something audited by an accounting firm doesn’t make me trust the numbers much more. It’s well known that many accounting firms will give you whatever result you want as long as you pay enough

u/zakary

KarmaCake day327November 21, 2018
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