HackerTrans
TopNewTrendsCommentsPastAskShowJobs

vegardx

no profile record

comments

vegardx
·4 месяца назад·discuss
I'm also a little bummed that they seem to have dropped the Pro Display XDR. I wanted a 32" display as the main display, and then use my existing two Studio Display vertically as secondary on each side.

I guess we're going to see how the support for DP Alt-Mode will be, as I'm not sure how much bandwidth that can provide, so 120Hz might be out of the question. But for now that has been a simple way to get around the lack of multiple display inputs, you just needed a separate KVM switch for it.
vegardx
·7 месяцев назад·discuss
One thing that made Tahoe even worse is that Apple changed what they considered an update or upgrade, so for Tahoe it was suddenly considered as a update and not an upgrade, in all management solutions.

This force-upgraded a lot of Macs at work and we lost days of effective work across many engineers. The machines was practically useless for weeks.

They clearly don't care about power users anymore, and haven't for quite some time. It's so sad.
vegardx
·7 месяцев назад·discuss
(I'm not a lawyer)

You should be careful about speaking in absolute terms when talking about copyright.

There is nothing that prevents multiple people from owning copyright to identical works. This is also why copyright infringement is such a mess to litigate.

I'd also be interested in knowing why you think code generated by LLMs can't be copyrighted. That's quite a statement.

There's also the problem with copyright law and different jurisdictions.
vegardx
·2 года назад·discuss
It would surprise me if it was, because of features like certificate transparency logs.
vegardx
·2 года назад·discuss
When this information is useful you've either got fundamental security related issues that needs to be addressed long before this, or you're dealing with threat actors with significant capabilities. In the latter case you've probably already taking this into account when you're creating your stuff, or you have the capability and technical understanding to know how to properly roll out your own PKI.

The overlap of people that suggest that you either run your own PKI or just distribute a wildcard certificate and have the technical understanding on how to do this in a secure way is minuscule. The rest of those people are probably better off using something like Lets Encrypt.
vegardx
·2 года назад·discuss
I don't understand why that is such a huge problem. The alternatives have much more severe problems, all from reusing a wildcard in many places to running your own PKI.
vegardx
·2 года назад·discuss
I'm going to chalk this up to the decline in Google search to save my embarrassment, because that was very straight forward, and I don't understand how I didn't find that. Admittedly, it's a couple of years since I looked and it could be a new feature.

Funnily enough one of the demonstrated use-cases of Apple Intelligence was looking up information like this.
vegardx
·2 года назад·discuss
I'm mostly happy with my Apple Watch, but you better hope that it doesn't calibrate itself poorly. There's no way to force it to recalibrate and it persists through full reset and even full replacement of the Apple Watch itself. I've more or less given up trying to fix it. So according to Apple I've been standing upright all waking hours for the last 3-4 years.

I've heard similar issues for people using crutches. They get like 3-5x the amount of steps, or not steps at all, and you've guessed it, no way to calibrate it.

(I'm sort of posting this in the hope that someone actually know how to force it to recalibrate)
vegardx
·2 года назад·discuss
I get the point you're trying to make here, and the sarcastic undertone, but I'd have issues living with myself if people died because of something that I was able to identify and that was preventable, and I did nothing.

The whole case strikes me as odd. Not only did the higher ups know about the problem, they also left a paper trail about keeping a lid on it and getting rid of the guy. This opens them up to a lot of scenarios, like:

- As demonstrated by this case, the information came out because of the wrongful termination

- If an accident had happened there's a fairly high chance that the investigators would uncover it, either because the engineer in question came forward or because they think they should have known about this, and cracks appear when they start asking questions.

An unspoken rule in a lot of fields is that you make sure that this kind of information never reaches the people that could be held liable for it. The people that are likely to be held responsible at least have to make it appear that they're not trying to suppress information like this. You quickly lose that ability if you actively try to get rid of people that tries to raise an issue. So they surround themselves with middle management that knows to not bring things up to them, without being explicitly told so.
vegardx
·2 года назад·discuss
I think that depends a lot on how the data is going to be used. It sounds like you're not really using EBS volumes for what they're great at; Durability.

While instance storage is ephemeral nothing really stop you from using it as a local cache in a clustered filesystem. If you have a somewhat read intensive workload then you might see performance close to matching that of using instance storage directly.

There are some fundamental limits to how fast a clustered filesystem can be, based on things like network latency and block size. Things like locking is an order of magnitude slower on a clustered filesystem compared to locally attached storage.
vegardx
·2 года назад·discuss
Having a low child mortality is important, and we've done so many good things in the last couple of decades, but I'm starting to think we're at the point now where the money you have to spend to make a meaningful difference is better spent in other areas of health care.

A classical example of this is in Norway. There's nothing that gives you access to more resources than being pregnant or being in care of a newborn. You can suffer from all kinds of mental health issues for your entire life, struggle to be a productive member of society and be in and out of temporary treatment and be on social benefits. But the moment someone is pregnant they get will be top priority for anything that is even remotely connected with child mortality, almost regardless of how benign something is.

I personally know several people that finally got the help they had been so desperately been begging for, just because they got pregnant. We could have saved them from literal decades of suffering by just providing good treatment early. I'm willing to bet that we'd even be in a position to spend even more money on reducing child mortality, because when you start doing the math of how much they ended up costing society it really adds up.
vegardx
·2 года назад·discuss
They don't even seem to specify what kind of charger they've tested. But I wouldn't be surprised if they found that a quarter of public L2-chargers were out of service. They have tons of failure points and usually very little internal logic to self-report.

Some of the early fast chargers (outside of Tesla) were notoriously bad, and a lot of them are still around, for better or worse. Many of the early AC and DC chargers were also without any kind of connectivity, making it hard to properly manage them. In the early days even some of the fast chargers at gas station weren't really network connected, and if they were it was poorly implemented. Not that different from pumps at the forecourt.
vegardx
·2 года назад·discuss
Making a wild guess that it was a Circle K-station that you went to? They were quite early to the market with fast chargers, and had a lot of reliability issues with some of the chargers. Like you suggested, it's usually software related, and you can often get them to work by just power-cycling them using the emergency stop button. If you hear the loud click from the metal contacts or the charger latches with the port and it doesn't start charging it's almost always a software glitch that a restart will fix.

For regular AC-charging all the logic is in the car, so the only thing you really need is some safety features on the outside, typically some ground fault protection and so on. But when you use a DC fast charger the charger itself and the cars battery management system has to work together, which I imagine can cause all kinds of edge cases where people have interpreted the standards differently. It didn't help that there were multiple different standards early on.
vegardx
·2 года назад·discuss
I don't really understand the argument you're trying to make. You want us to use less accurate meters and then pay a premium to cover those inaccuracies, which is supposed to be cheaper than just buying accurate meters? And then use some technology that doesn't seem to exist to detect losses and theft? If it was this easy we'd already be doing it.

These meters are more expensive, but not that much more expensive. The majority of the cost, by a long shot, comes from installing them. These meters also offer a lot of other capabilities, which greatly improves the reliability of the network. If you spread the cost of these meters over the projected lifespan we're talking about cents per month.
vegardx
·2 года назад·discuss
Everything I read seems to suggest that hydrogen is a pipe dream for energy storage, as the output efficiency is so low. And that's before accounting for all the issues of just storing and distributing it.

Solar panels and wind turbines produce electricity, the highest form of energy, directly. Instead of converting that to thermal or chemical energy for storage and then back to electricity for distribution, you're better off just storing it at as thermal energy at the destination. I think we often forget that thermal energy means everything from ~0 Kelvin. A heat exchanger can be very efficient.

I think there's going to be a lot of interesting stuff happening with dual-use PV panels and thermal heat exchangers. In some cold climates you generally want as much thermal energy as you can get your hands on.
vegardx
·2 года назад·discuss
For the last mile you're probably right, but the electricity has to come from somewhere. So you also need to size the production capacity, distribution network, sub-stations and whatnot to match the installed capacity. Things get really bad, really quickly, when demand and availability doens't match.
vegardx
·2 года назад·discuss
Are you sure you want less accurate meters? There's a lot of losses in the network itself, and without accurate meters it's hard to pinpoint where they are and if they can be fixed.

In Norway we quite recently switched to more accurate networked meters and at that time they said that as much as 30% of all electricity produced wasn't accounted for, which you end up paying for, one way or another. Some of these losses are from the network itself. But a not insignificant part was from people illegally tapping the grid or last-mile losses due to poorly maintained infrastructure that was hard to pinpoint without using expensive manpower to physically check every single connection.
vegardx
·2 года назад·discuss
There's a lower bound to how cheap electricity can be, the infrastructure to distribute it isn't free. Every country price this differently, but one way to solve this is to split the cost per kWh in use and transport, which is common in Europe.

In Norway we have a model like that, and it effectively sets a lower boundary of (depending a little on the region) around 0.50NOK/kWh, around 0.05$/kWh. The price for electricity quite often go into the negative during summer, but you still end up paying for the distribution.
vegardx
·2 года назад·discuss
I'm not going to pretend that there aren't edge cases and personal situations that would make it viable, but my initial comment was on consumers as a whole.

And we're talking about averages. So sure, if you have gas boiler you probably could get by with a 2,2kW or 3,6kW inverter, but just powering a simple kettle would likely trip a fuse. You can get around it with just being a little conscious about what you power up, and when you power things up, but I'd argue that most people don't want to deal with that.

And remember, if you're grid connected you either have to have a transfer switch or separate circuits if you want to use this as a backup when the grid goes down. It complicates things a whole lot.
vegardx
·2 года назад·discuss
Teslas "virtual power plant" is only for Tesla Powerwall. There's no V2G capabilities in any Teslas to date, and I don't think there's even hardware support for it. The Tesla Cybertruck has V2L capability, so it might have the necessary hardware to do V2G with some software updates, but I kinda doubt it.

The Tesla "virtual power plant" does reserve some capacity for you, and technically you can charge your car with that. A single Tesla Powerwall is "only" 10kWh, and with inverter losses and such you're likely seeing closer to 8kWh of usable energy if you charge your car with it. You're probably much better off just using it to run your appliances so you mitigate some of the losses with more inverters in the mix.