HNHacker News
TopNewBestAskShowJobs

ekr

730 karma · joined January 27, 2013

h2ofarmer@proton.me
submissionscomments
ekr··on The amount of fear in bullish investors and bubble companies is unreal
It's still a bubble, even if it doesn't or won't at all implode. It's a bubble because the underlying economic realities don't come anywhere close to the current valuation. I.e. it's all so inflated due to speculation.

6 months is nothing and doesn't say anything. But AI is just the frothing on top of the debt bubble, and all the cheap money that is still circulating around the economy. What I'm personally doing is taking on an asset allocation that would weather a potential downfall.

ekr··on Tesla appears to be building a teleoperations team for its robotaxi service
> The Uber we have today seems to be paying the third party drivers around cost price per kilometer

That doesn't make sense, as the drivers are obviously not operating at a loss.

ekr··on VanMoof, the e-bike startup, officially declared bankrupt in The Netherlands
Bafang BBS series had only two wires (positive and ground) connecting the battery to the motor.

I think other motors by bafang have similar setups.

ekr··on Will Sentient AI Commit Suicide?
> ADHD is the condition where there are many problems around and you cannot decide which ones are really worth solving, so you spend some effort on most of them but solve none.

What you described here has nothing to do with ADHD. You described a situation, a problem solving strategy and an outcome. That says nothing about the brain involved, or its functioning.

ADHD is a particular state of a nervous system, one of over stimulation/over excitation in one end and under stimulation in another. You can see it on an EEG, excess beta waves (among other things). You can see it as a neurotransmitter inbalance, neuroinhibitors not working properly.

But besides, the functioning of a brain and the environment it finds itself in are two interested things. But of course there is some influence between them.

ekr··on Ask HN: What languages should the Linux kernel accept next?
From my POV, Rust is already a bad decision for the same reason Linus was against C++. There's a continuous trade off against complexity and this is just such a huge addition to what was already a behemoth. I think Linus nowadays is a lot less strict in imposing his own rigor and engineering esthetics than he used to be.

It's probably been a long time since he was trying to steer the project to his standard of perfection, he gave up on that. Like he grew apart from it, life got in the way, and steering Linux is now more of a job than anything else.

What I'm saying is, 2004's Linus would have never allowed Rust into the kernel.

ekr··on Will Sentient AI Commit Suicide?
No. Various manifestations of mental illness and diseases of the mammal nervous system are deeply linked to the whole body and not just the conscious part of the brain. They were arbitrarily sculpted by evolution and encode a lot of information from the ancestral environment of all ancestors. You can't replicate that by simulating a process of evolution of various AI implementations. The fact that the vagal nerve activation influences facial muscles and human interaction in general is not something you'd expect in what most people think of an AI. And yet it plays a crucial role in mental health.

Would you expect an AI to suffer from ADHD? PTSD? Almost certainly not. Because most of these conditions result from an interactions of brains of different evolutionary ages.

Unless of course you're trying to replicate a mammal nervous system its entirety. But then your goal is not singularity and you're definitely not optimizing for intelligence.

ekr··on Apple M1 – a seriously fast x86 competitor
I'm personally both impressed and surprised by how well this M1 chip performs. But one thing most reviews omit to mention is that it has a fab process advantage compared to the competitors, especially against Intel. And going from TSMC 7nm (which is the latest line of AMD CPUs are using) to 5nm can bring a few tens of percentage points in power consumption and/or performance improvement.

This of course doesn't take anything away from the design, as clearly Apple has had a hefty lead against other smartphone SoC designers in the smartphone space for years.

ekr··on Apple Silicon M1 chip in MacBook Air outperforms high-end 16-inch MacBook Pro
There were talks of splitting Google and other huge companies due to their size (https://arstechnica.com/tech-policy/2020/10/house-amazon-fac...).

Wouldn't it be awesome if Apple's CPU/IC design segment became a separate company and sold these CPUs and maybe SoC by themselves?

I think that would make a big dent into AMD/Intel market shares. Since Apple's part/die should be quite a bit smaller than most of the x86 dies, the fab costs should also be smaller and so should the final price.

ekr··on How to Make Biomass Energy Sustainable Again
Stirling engines built into a wood stove is a mature technology capable of delivering lots of power (kWs for a regular wood stove found in a home). Simple to build.

As for pollution, no-one can deny that, but the rocket stove bunch claim much reduced emissions compared to even modern wood stoves (which I personally find hard to believe). But still, billions of people are still using wood to heat their homes; that's not going to change soon. Reusing that to produce electricity as a byproduct is something that some people call 100% efficient.

[1] http://volodesigns-sterlingproject.blogspot.com/

[2] http://www.oekofen-e.com/en/engine/

ekr··on We Don’t Like Our Underground House
Isn't that true of any building though? Where I live most houses have ceramic roof tiles, and even though they are supposedly long-lasting, after 60-80 years they do need replacing (most home-owners replace them much more frequently, every 10-20 years). I've replaced tiles on my grandparents' house which was around 60 years old, because they became brittle and started cracking after hundreds of temperature cycles, hailstorms etc.
ekr··on Using the Linux kernel's Case-insensitive feature in Ext4
Here's Torvalds' view on the matter: https://lwn.net/ml/linux-fsdevel/CAHk-=wg2JvjXfdZ8K5Tv3vm6+b...

I also side with this view, namely that this is something that would be better placed in the userspace rather than the kernel, which really doesn't need more complexity for things that add so little value (negative value to some).

ekr··on Ask HN: Does Anyone Want AGI?
The question is almost tautological because an AGI is fully general problem solver. Every human being has needs, wants that they are working to fulfill, because otherwise they would simply stop living. An AGI can be used to solve those problems for them.

The most common reason people are hesitant about rushing to build an AGI is the issue of AI safety. (at least that's the general consensus in the community).

ekr··on Ask HN: Do you donate to Wikipedia? Is their donation request motivating?
No. The biggest value that Wikipedia provides is the content. None of the donations are going to the content creators, very little of them are going to covering IT costs. And a lot of them are used for paying big Bay Area wages to people in the foundation whose work I regard as highly peripheral to the core value provided.
ekr··on Safely Reviving Shared Memory
I may sound like a grumpy old man, but I really really dislike this non-stop influx of complexity into every level of the stack. This is a clear case of an abstraction leaking. Microprocessor vulnerabilities should never lead to changes in a high level application protocol like that.

The work needed to implement an HTTP server is growing and growing and growing. There was some speculation a few days ago on why this is happening, and why big companies are benefiting from this. I don't think there's any conscious conspiracy anywhere, just a lot of people try to make a name for themselves. (There was a discussion on this a few days ago here: https://news.ycombinator.com/item?id=23833362)

But I just hate this growing complexity everywhere. HTTP can and should be much simpler than it's becoming.

ekr··on Apple commits to be 100% carbon neutral for supply chain and products by 2030
I don't think it's either negative or insulting. And it raises a good point. In 10 years' time lots of things could change that would make this "goal" irrelevant. Apple might be struggling to make ends meet 5 years down the line. I know that seems very unlikely for Apple right now, but imagine a company like Intel, add a big economic regression, trade wars with China (which for Apple is a big source of revenue) etc. But even just a few changes in the board of directors, or a change of CEO could see this target go out of the picture.

Besides, it's not a difficult target to achieve. I don't think it would cost much more than a few tens of millions of dollars to start and operate some solar and wind power stations of sufficient capacity to offset all of their consumption. It should be pocket change for Apple's budget.

ekr··on Designing a New Old Home: Part 1
There are some wood gates at the place where my grandparents used to live, that are some 60-70 years old now and are still fine. And they've seen quite a bit of rain (though probably not quite as much as in PNW).

The wood itself matters a lot too. Black locust wood has an enzyme in its grain that makes it extremely rot resistant. I've heard of black locust poles used as fence poles in the ground lasting for decades.

ekr··on Adevinta wins auction to buy eBay's classified ads unit for nearly $9B: source
Wow. This is very surprising for me. I only knew of the ebay-kleinanzeigen.de sites in the German webspace, and those don't seem worth anywhere near that much. Technology and design seem to be out of the 2000s and it should be really easy to replicate.
ekr··on Ask HN: Why can Apple out CPU Intel?
While TSMC is cleary a big part of the reason, it still doesn't explain why there's such a big performance gap between Apple's SoCs and the rest of the competitors in the ARM smartphone SoCs field. Apple is often leading the likes of Samsung, Qualcomm, Huawei, MediaTek by a whole generation in IPC or single threaded performance.
ekr··on Text-Only Social Network
I did try signing up. The second I ran into the activity requirement quota I quickly got out of there. That's a huge red flag for me, why is there a quota imposed on me? Are you paying users or something? Why expect free work to be done?
ekr··on Evaluation and euthanization of a dangerous honeybee colony [video]
Yeah, before seeing the videos I was certain they were carrying some incurable disease like the American foulbrood. I was surprised to see that the reason for euthanizing them was the aggressiveness.
ekr··on Ask HN: Why can't we solve the app store monopoly problem?
They don't get to say that due to antitrust laws. Hence why you can use Amazon's appstore on Android, or FDroid etc. I'm not really familiar with the Apple ecosystem.
ekr··on Procrastination is driven by our desire to avoid difficult emotions, says expert
I'm fairly sure the author means that if you're still able to maintain a more or less demanding job and all the social obligations thereof, the degree of your suffering is nowhere near as serious as it could be. Take for instance someone suffering from debilitating/easily triggered mental breakdowns/ seizures.

You may think that these conditions are not strongly related to procrastination, I can argue against that.

ekr··on Ask HN: Why you do what you do?
I don't think you can get useful answers or of this thread simply because most humans don't have metacognitive introspective awareness; it's not something we evolved to have, in fact it is something that would bring negative reproductive fitness, given that the brain has mechanisms to actually hide the root motivation for our urges.

The best way would be to study the neuroscience of human motivation. There's a specific brain circuit involved. But from another perspective, we do what we do to fulfill various needs, mostly security and belonging. That can result in things as complex as status games.

Things are a lot more complex than that, if you consider the evolutionary history of the brain stem, limbic system and the cortex, each newer system is able to override the older one, resulting in completely different behaviour.

ekr··on Thermoelectric Stoves vs. Solar Panels
Funnily enough, just the other day I was thinking of a wood gas generator. It would be interesting to see an efficiency comparison, as the wood gas generator also gives out a lot of waste heat. The internal combustion engine is itself not more than 25% efficient so you won't get great efficiency there either, if you add up the losses from generating the wood gas.

But it should still be much better than these thermoelectric generators.

ekr··on Embrace, Extend, and Extinguish
I'd love to hear Torvalds' opinion on this DirectX PR. In any case, as someone who hates complexity and loves simple software (in the suckless sense), whenever I see these monstrosities get merged into the kernel, it makes me search for alternatives. There was a time when the kernel codebase was small and easily understandable by 1 person, apart from the drivers. Apparently simplicity and keeping complexity at bay is no longer a goal for Linux.

BSDs do a bit better here, but they are still behind on several metrics. Maybe this will be the main motivation for the next successful kernel? The fact the Linux simply got too big and complex?

ekr··on Ask HN: Why is life worth living?
This question cannot be answered intellectually, analytically. If your nervous system is functioning well, the question won't even come up in your mind. Life is enjoyable, when there is no suffering.
ekr··on Ask HN: How can I improve my writing
My impression is that maybe you worry a bit too much about it. Performance anxiety/stage fright/etc. This doesn't help of course, by making it more difficult to have a clear head.

As long as you're getting your point across, everything is fine. It will naturally improve in time with practice, although I can't see any problem with your current way of writing.

ekr··on Ask HN: Consciousness is _ and AI is _? and which one makes you happy?
I don't understand the question about happiness, but I'm quite sure that consciousness is emergent phenomena (illusion mainly) of the various physical brain subsystems. AI, or rather these physical brain components are almost certainly emulatable in a computing device (to be read as, I estimate a high probability). How efficiently is the only remaining question.

Also, the way this is implemented in the brain is probably far from the most efficient way.

ekr··on The coronavirus pandemic in five powerful charts
Very good question, I would too like to hear thoughts on this. My first impression was that the data was simply not being updated anymore. The change was too abrupt, simply doesn't seem natural.

Is it likely that the Chinese are giving false data / simply not testing as thoroughly anymore?

ekr··on Ask HN: Are people considering Corona parties (a.k.a. Pox parties)?
It is astonishing that even on HN there are these style of insulting / ad-hominem / reddit-style answers to a honest inquiry.

You conclusion about people understanding math is unfounded, maybe OP doesn't have the data, maybe that's simply not the concern of the question. (and even you are making a hidden argument for getting infected now, whilst hospital beds are still available, rather than later).

Again, if written in good faith, there are no stupid questions, and ad-hominems like yours have no place on HN.

← PreviousPage 2 of 10Next →