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I'm unsure if you're making a joke that flies over my head, but no Greenland is Danish, not Dutch.

A lot of people have made careers out of telling you that it's a failure, but while not everything about the F-35 is an unquestionable success, it has produced a "cheap" fighter jet that is more capable than all but a handful of other planes.

Definitely not a failure.


And the fact that superman can fly is evidence that people are lighter than air. Otherwise it wouldn't happen.

The costs (in money and energy) of the infrastructure to mine another solar system would pay for a lot of R&D to synthesize whatever it is here in our solar system.

Unlike the other poster, I don't think interstellar mining needs finding, I'm perfectly happy to lean back and enjoy the show. But whatever they mine would have to be very magical indeed to not be cheaper from any other process.


> And the fact that superman can fly is evidence that people are lighter than air. Otherwise it wouldn't happen.

Is this a serious response? What is your point?

> The costs (in money and energy) of the infrastructure to mine another solar system would pay for a lot of R&D to synthesize whatever it is here in our solar system.

Sure. Just like infrastructure to mine another continent would pay for a lot of R&D to synthesize whatever. And yet, we mine other continents. Not only that, in the not too distant future, we are going to mine the moon, asteroids, etc. I wonder why we don't just synthesize gold rather than mining for gold in south africa or some far distant place?

> But whatever they mine would have to be very magical indeed to not be cheaper from any other process.

And yet, history, science, economics and reality says you are wrong.

You do realize that costs come down right? Just because intercontinental travel was expensive in the past doesn't mean it is expensive today. In a world of engineers and xenomorphs, it's the least crazy aspect of the film that simpletons are hung up about.


I have seen it claimed that's a way of monetizing free phone apps. Just bundle a proxy and get paid for that.


A recent HN thread about this: https://news.ycombinator.com/item?id=45746156


They're not dealing with a pressure differential. Or at least I don't think so.

I don't think the Journalist who wrote the article understood the technical details, but from digging a little at their website I think what's going on is they're moving heavy brine up and down, all of it equalized with local pressure.

Despite them describing it as pumped hydro, I think its better framed as a cousin of the "chunk of concrete suspended over a mine shaft" style gravity battery. Replace the mineshaft with water and the concrete with salt.


Oh, right thanks for clarification. They are indeed not pumping just any salt water, but much heavier brine (which they get who knows where).

So if there is any leak in the system, it will kill local wildlife right, like the brine pools under ice in Antarctica.


If there’s a catastrophic collapse, sure.

If there’s a leak? I don’t see why it would; the brine will be immediately diluted.


That link isn't really a source for residential 3-phase power.

Almost every electrical network is 3 phase distribution, the matter under debate is if you bring every phase to each house, or if a phase reaches every third house.

Anecdotally I have never seen an electrical panel without three phases, but when I went looking it was like trying to find a source for the fact the sky is blue.


So, a Systolic Array[1] spiced up with a pinch of control flow and a side of compiler cleverness? At least that's the impression I get from the servethehome article linked upthead. I wasn't able to find non-marketing better-than-sliced-bread technical details from 3 minutes of poking at your website.

[1]: https://en.wikipedia.org/wiki/Systolic_array


I can see why systolic arrays come to mind, but this is different. While there are indeed many ALUs connected to each other in a systolic array and in a data-flow chip, data-flow is usually more flexible (at a cost of complexity) and the ALUs can be thought of as residing on some shared fabric.

Systolic arrays often (always?) have a predefined communication pattern and are often used in problems where data that passes through them is also retained in some shape or form.

For NextSilicon, the ALUs are reconfigured and rewired to express the application (or parts of) on the parallel data-flow acclerator.


Are the GreenArray chips also systolic arrays?


My understanding is no, if I understand what people mean by systolic arrays.

GreenArray processors are complete computers with their own memory and running their own software. The GA144 chip has 144 independently programmable computers with 64 words of memory each. You program each of them, including external I/O and routing between them, and then you run the chip as a cluster of computers.

[1] https://greenarraychips.com


Reminds me a bit of the Parallax Propeller chip.


TIL about the Parallax Propeller. Yes, it does seem very similar to the GreenArrays GA144, complete with an idiosyncratic language and IDE.

One distinction of the GreenArrays chip is that they claim it is very energy-efficient.


So, either me or the author has misunderstood something. Memory allocators are not among my specialties, so it might very well be me, but:

> Being able to pre-allocate objects of fixed sizes and then offer up available objects to callers is much less work than allocating individual objects on demand.

At least, from reading his included code snippets I got the impression that what's actually happening is that it has multiple allocators to avoid fragmentation and that everything actually related to actually allocating does actually happen on demand.


You can find more in the RISC-V privileged specification[1], section 3.7 I don't have any benchmarks and I think no such generalized benchmarks exists since its a specification and every core brings its own implementation (or none, its optional). With that said, its simple and probably effectively zero overhead, but its also much less capable than what a MMU can do. Its a "protect some firmware against the OS" or "absolute minimum hardware for some memory protection in a cheap MCU", not a competitor to full fat virtual memory.

[1]: https://docs.riscv.org/reference/isa/_attachments/riscv-priv...


Possible, just like Russel's teapot.

But there has been one very well published Ukrainian attack launched from Russian soil[1].

If Ukraine had could regularly smuggle several drone aircraft's and explosives into Russia and launch them, we would be seeing a lot of other effects. Such as attacks on weapon production sites deep into Russia[2].

But yes, a lot of those attacks are probably unsuccessful. With my qualifications as armchair general, I would be surprised if more than 10% of them was successful.

[1]: https://en.wikipedia.org/wiki/Operation_Spiderweb [2]: https://en.wikipedia.org/wiki/Yelabuga_drone_factory


I also don't think they'll target the Yelabuga drone factory with a drone when they could use that drone on something relatively small but high value (like an aircraft) or combustible (like a refinery), and are waiting for their heavy cruise missles to come online for targets like factories. You can't do much damage to a factory with a drone. We've seen Ukraine target industrial sites with drones, but it's not common.


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