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CobaltFire

3,329 karma · joined September 21, 2020

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CobaltFire··on Those of you who are daily driving Linux, what are your other devices?
I'm actually in the situation of looking to exit the Apple ecosystem to an entirely Linux one.

If you look at my post history here I lost my entire Apple account due to them assuming my purchase of a 128GB Studio was fraud, and was fortunate enough to escalate to the right office to fix it.

Couple that with the age attestations coming down the pipe and I'm thinking that it's time to go ahead and complete my transition. I love the hardware, I am productive with the OS, but enough things are pushing me away that I think it's time to go Linux for the computers and GrapheneOS for the phone.

I'll have to unload the Studio, which is annoying. I have no idea what to replace it with in the Linux space. I love that machine.

CobaltFire··on I, for one, can't wait to join the permanent underclass
I'm not sure I believe in this, but I certainly want to.

There is a certain logic to this, and it's not certain it won't go this direction. But creating a solid society for the masses so they don't revolt isn't what most of the out of touch tech billionaires aspire to, from their own public comments.

CobaltFire··on AI boosted homework scores, then exam scores dropped: study
Naval Nuclear Power School had (maybe still does) this model 20 years ago as well. Pass rate for my class cohort was 28% over the entire 2 year pipeline.

We didn't call them retch sessions, and they were taught by the instructors though. We also were encouraged to peer tutor and since we were all restricted to one building the homework was always group work allowed.

Also had badges to track time spent in the building for required study hours, though some people gave up and just slept at their desks when they started sliding down the grade scale and the hours racked up.

Generally I think I did 30 hours of studying/homework (went up and down depending on what was being taught, but was around that) a week (for 12-15 hours of actual lecturing), with some of my friends putting in 50% more. Generally the only day we weren't there was Saturdays. Most of the day Sunday was usually spent in class preparing for the next week.

CobaltFire··on Site removes all the clutter from recipe videos and gives just the recipe
How do these options deal with translation of other languages?

I can do it manually, but was curious if any send it through any of the translation engines.

Specifically my wife has a TON of Japanese recipes that I want/need to translate so I can use them. I can do it manually but doing it automatically would be awesome.

CobaltFire··on Why I've tracked every single piece of clothing I've worn for three years
I have also settled most of my wardrobe on Uniqlo and Patagonia. I have some other stuff, but over 80% is from those two companies.
CobaltFire··on Two wheels, a few tradeoffs, and gas prices
Rode for nearly 100k miles before giving it up (had a 100 mile/day commute, plus leisure).

Too many close calls, and since giving it up lost five coworkers to accidents.

Still miss it all the time, but it's just not worth the risks. I don't even bicycle on public roads (in the US; I do in Japan) any longer due to too many close calls and several injuries in my social group.

CobaltFire··on Danube's record low levels force shutdown of Hungary's only nuclear plant
Probably me. I wrote that on the train...
CobaltFire··on Danube's record low levels force shutdown of Hungary's only nuclear plant
Backing this up, these high numbers are for typical cooling towers where they vent to atmosphere.

Once you get into closed loop PWRs the numbers get crazy. Actual figures for Naval Nuclear plants are classified, but as a nice round number example if you pressurize the secondary loop to 250psi you end up with about 1,725 kJ/kilogram to boil it.

Absolutely terrifying stuff.

CobaltFire··on Danube's record low levels force shutdown of Hungary's only nuclear plant
I don't disagree but am having a hard time parsing the second half of your comment.

In my experience we saw some losses when taken as a system that prevented us from hitting 2:1, but they weren't anywhere near 50%. We also ran closer to 40% than 33% thermal efficiency in the power generating loop, so many of the system thermal costs are baked into that 33% efficiency to the grid.

Basically, each reactor install will have it's own minor issues. Overall they should be hitting around 2:1 as an entire system. If they aren't there is something going on that I haven't come into contact with (which is quite a lot, I'm sure).

CobaltFire··on What liberal arts education is for (2024)
I had an extremely focused career, but am by nature a curious individual who craved the type of discussions the article talks about. They were closed to me because I came from poverty and had to focus to move myself up the ladder.

Much like the author however, I found that my natural curiosity, and specifically that desire to ask what the words being used MEANT, to serve me extremely well. When I was a PM for a billion dollar plus project (military can hit that easily) that attitude is what got me the job.

The constant push back from those who seem to value only their, and your, positions as cogs in a machine was exhausting. I really agree with this entire article. Thanks for posting it.

CobaltFire··on What liberal arts education is for (2024)
This comment really speaks to the article.

The commenter didn't even have the curiosity to read and comprehend the article, and made the articles point in that.

CobaltFire··on How far can you push the range of Wi-Fi connectivity in an ideal environment?
Thats the arguably legal part. Using a VPN or SSL over it violates the law, so...

I don't see the point personally. I'm just aware of the arguments. The "best" use case I saw was some hunting and lake cabins extending coverage.

CobaltFire··on Long Range Wi-Fi – Pushing 2.4 GHz Wi-Fi to the limits (2019)
They address that they were looking at the maximum unlicensed power.

In HAM circles some people do use WiFi in an arguably legal manner by making the SSID their callsign and either making the network open or putting the password somewhere public. This is because you are not allowed to use public bands for encrypted communications (with a carveout for satellite control, for obvious reasons).

I'm unsure what ranges can be hit with that setup, but I know it can be far enough that LoS due to curvature of the earth becomes a factor.

I do think just getting a wireless P2P bridge is easier and smarter and why this hasn't seen more use.

CobaltFire··on Long Range Wi-Fi – Pushing 2.4 GHz Wi-Fi to the limits (2019)
Used a cantenna and a PCI card with modified firmware to great effect when I only had WiFi for internet at the barracks in Japan in the 00's. I was absolutely outside of the legal limits on power, which I didn't really know at the time.

Extreme contention when 250 people had 3 APs as their only connection and half were trying to play WoW at the same time.

CobaltFire··on Danube's record low levels force shutdown of Hungary's only nuclear plant
Nitpick here:

Nuclear discharges more like 2kWh of heat per kWh of electricity produced.

Perhaps slightly more, but its in that ballpark. Seems like a small difference but you are overstating the waste by near 50%.

Source: Degree in Nuclear Engineering, previous life was a Reactor Operator. Also, just look up thermal efficiency of currently operating reactors.

CobaltFire··on Getting 25 Gbps Thunderbolt Ethernet on My Mac Studio
Commented on another top comment but yeah, I've been running a similar setup for about $200 all in. Using the PCIe LX version takes care of much of the heat issue, and an eGPU dock (Razer Core in my case) takes care of the fan. Craigslist and eBay were the sources.

Speeds aren't any better, but at least it was cheap and fiber.

CobaltFire··on Getting 25 Gbps Thunderbolt Ethernet on My Mac Studio
Thats what I do.

ConnectX-4 and newer are natively supported. I use a ConnectX-4 LX in a $50 Razer CoreX off of craigslist. Works fine, hit similar limits to what Jeff did.

Using an OCP is the neat trick here. MUCH smaller setup.

As far as the other posters comment about Tx's... that is an entirely different topic. I've never had an issue with FS.com optics personally.

CobaltFire··on Keychron announces first open-source firmware for gaming mice
You sound like me. Same gripe about my Keychron, same Moonlander gathering dust that I keep meaning to do something with...
CobaltFire··on Cyberpunk Comics, Manga and Graphic Novels
Patlabor is left out of most lists.

The new one (EZY) is amazing if you haven't seen it.

CobaltFire··on Every new car sold in the European Union must include a driver monitoring camera
When I loved in Guam we had a joke bout this:

How do you tell if someone is driving drunk?

They are driving straight!

With the unspoken part being anyone NOT drunk was weaving to dodge debris, potholes, etc.

CobaltFire··on Jamesob's guide to running SOTA LLMs locally
No? Any M5 Max with the upgraded GPU has the full bandwidth, which includes the 48GB model the original poster mentioned. Same as the M4 Max, where only the trimmed part had a lower bandwidth.

Why are you throwing in extra cost for something thats not necessary? I know multiple people with 128GB Macs and none of us upgraded the storage. Especially not on a Studio (which isn't currently available).

I will say that their $3k number is off. I somehow missed that, and its too low.

CobaltFire··on Jamesob's guide to running SOTA LLMs locally
$4.8k for 48GB Max (what the parent said). Half of your quote.

Even a 128GB is $6.8k today. Still only 2/3 your quote.

Bandwidth is relevant (I have both a 5090 and an M4 Max 128GB Studio, so have direct comparison right here), but quote the cost appropriately!

CobaltFire··on American Homeowners Are One Disaster Away from Losing Everything
I won't try because I did something similar. If it happens I can guarantee that the insurance companies won't be solvent.

Instead we are focused on investing our money as a form of self-insurance.

It's kind of like life insurance; term makes sense but whole life doesn't (vs investing the premiums).

As far as polymarket: I can't say there. I've never used it (though I know what it is).

CobaltFire··on NSA director: 'Mythos "broke into almost all of our classified systems in hours"
For poking at things "not directly in your responsibilities."

I was writing a program to do some remote drive upkeep and realized I needed permissions I didn't have, but could use a built in tool to do them. Then realized that meant I could take another step and use a human interface issue to gain more privilege if I wanted to.

Built a proof of concept on my personal machine at home, checked that it worked, reported it upline.

I never executed that code on our work systems and would have ended up in jail if I had. But even writing it nearly landed me there.

CobaltFire··on Apple announces significant price increases for MacBooks, iPads, more
Well I guess that changes the keep vs sell calculation on my 128GB Studio. Have already been thinking about downsizing; seeing what the prices are now I may go ahead with that.

Absolutely awful timeline where the value of a PC goes up with time.

CobaltFire··on Ask HN: New clean macOS install. Must-have apps? Best browser?
Safari for most things, Chromium if I have to for something.

I didn't toss those there because those (and IDEs and SSH/Terminal clients) are very opinionated and everyone has their favorites.

CobaltFire··on Ask HN: New clean macOS install. Must-have apps? Best browser?
Heres my list:

Transnomino (https://www.transnomino.com/)

StillColor (https://github.com/aiaf/Stillcolor)

SublimeText (https://www.sublimetext.com/)

Homebrew (https://brew.sh/)

VLC (https://www.videolan.org/)

Macs Fan Control (https://crystalidea.com/macs-fan-control)

Rectangle (https://rectangleapp.com/)

NetBird (https://netbird.io/)

Obsidian (https://obsidian.md/)

Honestly its not huge and most are probably obvious, but those are what I immediately install on my machines. Looking forward to seeing alternatives or new must-haves.

CobaltFire··on Canyon HUD helmet for road riding
I've posted that to HN before and it never gets traction. It's too bad; it's an excellent resource.
CobaltFire··on Semiconductor Lifeline Keeps Fighter Jets in the Air
This is actually a topic I have deep experience with.

I wrote both test bench and aircraft code to replace an F/A-18 (C/D) chip in the RPYC (Roll Pitch Yaw Computer) due to the original being NLA. If I recall correctly (this was a couple decades ago now) the new chip was NEARLY a drop in but had a slightly different rise/fall curve and a couple of ns faster response. It was the closest I could find but required software updates to both the aircraft and the test bench to not be an issue.

So yeah, this has been an issue for decades. I'm personally glad to see a company addressing that market.

CobaltFire··on NSA director: 'Mythos "broke into almost all of our classified systems in hours"
Not a surprise. I got in a LOT of trouble for identifying and outlining a trivial privilege escalation attack that worked on both NIPR and SIPR.

In the end I got to help write up the issue but to my knowledge they never patched it as it would have caused major issues with maintenance by closing off access needed for some legacy software patches.

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