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I find the talk around Donut so weird. At CES we were told they had nothing because they hadn’t shared third party test. They then shared third party tests remarkably fast. From the dating of VTT reports it’s clear they shared it as soon as VTT finalised their reports. Now they have nothing because they haven’t released enough tests fast enough?

It’s clear they have something very interesting.

We’re mainly missing low temp and energy density test. If they have something real, obviously they’re saving density for last (near the time real customers get their hand on the bike), since it will give them huge amount of attention. Can’t fault them for milking what they’ve got (if they got it) for all the marketing hype it’s worth.

We’re also missing cycle life test but the claims can’t really be fully tested in a reasonable time. So even if their tests show projections that indicate high cycle life, people will doubt it, or shift the focus to ageing effects. So personally I don’t care much, we just have to see how it works out in real life.

The lawsuit incidentally reveal their connection to partners which does reveal that there’s something real there. Another criticism was that the couldn’t have developed all the tech from scratch themselves in such a short time, and now it’s clear they didn’t, they’re using tech licensed by other companies with real competence in the field.

If it’s as good as they say with zero caveats and can be manufactured at scale is another matter


I think by this point they demonstrated basically all the characteristics of their battery well enough, except for the density, but then that was a pretty damn important and big claim. I'm not sure they can afford to delay that much longer. Or the actual shipment of products.

They didn't share third party tests. They shared tests done by a party they contracted, and whose test reports don't back up the claims to the extent that they claimed.

Do they have something interesting? Maybe! But it could also be yet another Theranos. Extraordinary claims require extraordinary evidence, and they haven't exactly been forthcoming with it.


The danger of batteries doesn’t have much to do with their capacity. Many solid state batteries are far safer than liquid electrolyte ones, while also having higher energy density.

Nothing market leading about AirPods? I find it telling that it’s one of the only Apple products that LTT Linus is using, despite not working as well with Android as with iOS. And they have around 30% market share in their product category

You find it telling that some YouTube 'influencer' uses Airpods? You only noticed because of Apple's distinctive white branding, they have market leading marketing, I'll give you that!

Not GP, but I also find it telling that Influencer with a free pick at any sound equipment at any price point, famously not super onboard with the ecosystem (Bar recently with the Neo) still does pick them

Linus is not an audiophile by any means, but he's also exposed to more and better equipment than even most of the already significant outliers in HN


The upshot is it could accelerate the development of smaller local fertiliser factories running on solar power. There’s a few that have been built and demonstrated. If we start to build them in large numbers hopefully the costs will become reasonable.

That’s for nitrogen. Sulphur is another matter. I suppose in the long term we should just adapt food production to what can actually be sourced sustainably and locally.


Amazing, and people wonder why there is this immense backlash to environmentalists.

"Tons of people will die, but thats fine if it achieves my political/environmental goals"


7 million people per year die prematurely from air pollution alone. Are you suggesting we should just keep killing those people indefinitely instead?

Those 7 million lives were apparently never worth fixing things for; now maybe we can shift away from a fossil fuel-driven economy and cut back on a lot of that pollution, and maybe save a ton of lives in the long run.

Yes it is horrible that people are going to die from famines, no one is arguing against that, but maybe it will result in shifting our economy to something where people don't die of famines and also don't die of air pollution.


The number of people who'd die from famines will be much much higher than 7 million per year.


I don’t think Microsoft’s approach to perpetually support old apps is unequivocally a good thing. It seems to be getting them into a deeper and deeper mess over time.

As a consumer I prefer Apples approach. If I were an industrial customer relying on old software to operate my machines i would prefer Microsoft’s approach.


Why do you assume that solar and production of food is mutually exclusive on that land? Agrovoltaics is a thing and can often have benefits to the growing of crops.


The only way to simulate what real hardware does is to synthesise the design, get a net list and do a gate level simulation. This is incredibly slow, both to compile and to simulate.

You could, of course, simplify the timing model a lot. In the end you get down to “there is some time passing for the signal to get through this logic, we don’t know how much but we assume it’s less than any clock period”.. in which case we end up with delta cycles.


Real hardware has clock trees. Wouldn't all (most?) problems with delta cycles go away if the HDL understood the concept of clocks and clock balancing?


That’s overly pedantic.

Then you’d say that Apple doesn’t make their laptops. Foxconn does.

The kind of work ARM would do to “make” a chip themselves goes beyond just design. It’s synthesis, P&R, test, packaging (generally a different company than the fab), yield management, inventory/logistics, etc.


Popular apps? Probably not many.

But in the field of integrated circuit design there’s lots of apps that are Linux-only. I’ve tried to run some of them in containers on Mac. But XQuartz is awful.

If they ever transitioned to Wayland perhaps this would let us run these apps on Mac in a nice way.

On the other hand some of them have started getting ARM builds (for running simulations on certain cloud environments) so maybe native Mac GUI builds could happen someday soon.


> But XQuartz is awful.

What issues are you seeing with it? I use it pretty heavily and have no complaints…


The biggest issue I found is that X apps look like ass against the elegant Mac environment. Maybe that's mitigated somewhat by macOS 26's Android-ass looking UI, but the appearance/functionality clash between Mac and generic Unix was a major issue before.


I agree, I think the problem is the seamless integration, where it renders only the application against the macOS environment. I'd much prefer something more like the cocoa-way example where there's a window that has its own background, and the applications run inside that. Not sure if Xquartz supports running a compositor or windowing manager.


XQuartz used to support rooted mode. I played with an early version back in the PowerPC era, and ran a regular desktop with WindowMaker and everything, using software from MacPorts. It was kind of a "parallel universe", as XQuartz would take over the whole screen in rooted mode and you had to switch between it and the Mac desktop, but it looked and functioned like a typical Linux or Unix desktop of the early 2000s.


What about this plus XWayland? Would that do it?


Feels like it'd just create a market for a big rack-mountable multi-bay PCIe enclosure, with its own internal power supply, that you could connect with one ore more thunderbolt cable. I don't see any reason why a solution built around a Mac Studio should have to be significantly more cluttered.

I don't know if such a solution exists right now, but I'm thinking there's a fair chance it will soon as the Mac Pro disappearing creates a demand for something like it.


Thunderbolt is really an unsung hero here. It is surprisingly nice to be able to move various components around my desk that would have otherwise sat in a huge tower hogging all the PCIe slots they can find.


Agreed, I've been doing experiments and it's wild to me what "just works" in a secondhand eGPU case or music production PCIe boxes.

Dual 10G NIC cards, way cheaper than a comparable dongle 36 HDDs in JBOD, absolutely! 12 optical drives, sure!


The Thunderbolt offerings on the current Mac lineup offer dramatically less bandwidth in total if that matters for a given use case. Thunderbolt 5 is the equivalent of PCI-E Gen 4 x4. So if all 4 of the Thunderbolt 5 ports on a Mac Studio can run at full speed, that's still only the equivalent of a single gen 4 x16 slot. That's less than half the bandwidth of a basic consumer x86 CPU, to say nothing of the Xeon that was in the previous Intel Mac Pro or a modern Epyc/Threadripper (Pro).

This is a big reason why things like eGPUs kinda suck. Thunderbolt is fast for external I/O, but it's quite pathetic compared to internal PCI-E.


Reports as pointed out here have shown that x4 to x16 for most GPUs and common loads is a 1% to 10% loss of performance - hardly pathetic. In many (gaming) cases, it would be unnoticeable.


The DAD AX32/AX64 is such a thing.


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