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jmrm

523 karma · joined April 18, 2021

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jmrm··on Could we build a computer designed to last at least fifty years? (2021)
I think we have reached a point in tech where there isn't a huge benefit about changing computer every 3 years like in the past.

You can have a computer with 10 years that can run modern OSs and software without being incompatible or too slow, a thing totally impossible 20 years ago.

If you do AI related developement or play videogames, you would require at least a new GPU, but outside that, I think the only couple things (pretty major IMO) making those computers less useful are more complex video formats not available to decode by hardware, and the vast amount of code some web apps use (try using YouTube or Twitter in an old laptop)

jmrm··on Ask HN: In 2024, is SWE a sustainable career?
- About LLMs, AIs, and Agents:

Have you used enough time some LLMs in IDE/editors? At first it seems magical, but the moment you're working on a big project, with multiple libraries, dependencies, and interfaces outside your project files, they are prone to either hallucinate or just use incorrectly existing function or other code parts.

They will help us to do slightly repetitive tasks, like writing unit tests or writing some boilerplate, but I don't expect it to solve big problems specific to your task.

- About people:

I don't know in your country, but in Spain, lots of people outside tech backgrounds/spaces are pivoting to CS, SWE, and similar degrees because during/after the COVID they felt tech people had a lot easier, as because they could WFH, they didn't lose their job, they were well paid, and they could find a new one fast, even if this isn't true now.

This both makes the junior engineer market worse, due to having too much people, and also makes the HR work harder as they have to sieve between more people, but on the other hand, I think this will make HR more concerned about enthusiastic people who learnt by pure interest really useful skills aside formal education, like learning other languages, to use and configure UNIX systems, to use proficiently the terminal, or having done some side projects.

jmrm··on Amazon's $1,600 Astro robot has FOUR CPUs running Linux?
A huge save Tesla's architecture can have is in cables. It seems silly, but that amount of automotive-grade cables sums up to the cost of the different electronic units.

Doesn't surprise me at all they didn't implemented that before Tesla knowing how problematic are electronic and software in plenty of ICE cars.

jmrm··on Samsung launches 61.44TB SSD, talks about a 122.88TB model
If those drives uses 2 or 4 PCI Express lanes, wouldn't a modern CPU/mainboard have trouble connecting such many SSDs?
jmrm··on The rise of the disposable car
I'm not a mechanic, but they can see the brand and model on the part and call the manufacture or just google it. If it's the same as the car's brand, or if they don't give any information, you can check forums to get that information, otherwise sometimes they can find this information in their AutoData service.

Checking that state of the fluid isn't difficult, as is bright red when it's new, and turns more and more brown when it's used, and it's mostly used normally between 50k and 100l AFAIK.

Buying the required fluid, and filter if needed, is as easy as looking it in the internet or going your local AutoZone, O'Reillys, AAP, or whatever you have near btw

jmrm··on The rise of the disposable car
> 'Maintenance free' transmissions are very common in newer cars

I take advantage to your comment to write this PSA (that probably you already know):

All transmissions require maintenance, and even manual ones. Those automatic tagged as 'maintenance free' from the brand aren't, and if you call the manufacturer of that transmission, Getrag, ZF, or whatever it is, they should say which ATF and filters it needs and in what interval.

If you do maintenance with an independent technician (not a dealership or a "Jiffy Lube") with some good reputation, they probably help with that

jmrm··on Priced out of home ownership
Exactly. It's insane how there are "landlords" (companies or even hedge funds) with dozens of flats in Airbnb in Spanish cities.

All the people and companies with some money in this country are buying those flats to rent them to tourists, and it's the most lucrative business someone can have as the expenses are minimum in comparison to the earnings.

If they taxed heavily having more than 10 homes they weren't whole neighbourhoods of tourists in our cities, and those who born there would have some opportunity to rent or buy something there, instead of having to having really far and losing most direct social relations they had

jmrm··on Priced out of home ownership
They also have to remove that "golden visa" in Spain due to the same problem. I wonder if Italy, Greece, and Malta will also remove/reform their law due to the same problem...
jmrm··on 25GBit/S on macOS and iOS
Good luck with drivers!
jmrm··on Taking Risk
IMHO if those people have the money to be living in SF in the first place, that part must be solved beforehand
jmrm··on Operation CHARM: Car repair manuals for everyone
It's curious how this kind of documents and book are easy to find for free for cars sold in North American but not from other places. That's a big marker about how big is the car culture there.
jmrm··on Microsoft set to unveil its vision for AI PCs
It would be fun to use in an Excel cell '=COPILOT("Percentage of profits variability of this asset knowing YoY price changes on raw materials analysed in sheet 'Materials costs'"), and watching it converting in a complex formula
jmrm··on The new Windows update made me think I'd installed malware
Does it say what program need administrador privileges? IIRC Linux are doing this since around 20 years ago
jmrm··on Ubuntu on the ThinkPad X13s Review
It's even worse at it varies from distro to distro. My laptop had battery life issues and some graphical issues[1] in Ubuntu but worked fine in Pop!_OS, even being an Ubuntu based distro.

In my experience, those "for dummies" distros are the best to not have those kind of issues, like Pop!_OS, Linux Mint, or Elementary, but with so much closed source in hardware manufacturers it's normal to the community to don't be able to give a solution in a short time period.

[1]: It has dual Intel and AMD hybrid graphics, so it's understandable to some degree.

jmrm··on 'Gen X has had to learn or die': Mid-career workers are facing ageism
When I was in the University most people didn't know and didn't wanted to learn how to do that, and a couple of buddies and me helped the rest of folks with those needs.

We were in an EE/Telco degree where we had to program in different languages and configure plenty of different software, so knowing to solve that kind of problems are relevant in the kind of work they were going to do in the future.

The reality of that is how most of people are (or were?) in those degrees as a mere formality to get a good paying job, and interests are a secondary matter.

jmrm··on HP is in the rent-a-printer business now
I think it doesn't exist because the Brother brand is already good enough
jmrm··on Floats Are Weird
AFAIK in Europe numerical methods is mandatory in most Telco/EE degrees, but not in CS/SWE. The opposite happens with discrete maths btw
jmrm··on Lapce
Thanks your contribution! I just downloaded it, installed the Rust add-on, and it automatically used rust-analyzer showing all the information of types and structs. It maybe needs some polishing, but looks like it works like it should, and it does it really fast. I'll test it better tomorrow, the running and debugging interface seems really simple and interesting tbh

On the side of the GUI, what made you make Floem instead of using egui or other similar library? As far as I looked, looks like a non-native reactive GUI using some 2D graphics library like the other ones. Does the granularity in that reactivity have a big importance in that?

Apart from that, if Floem is easier to use than other graphical libraries for complex designs, or if you make a GUI designer like you have in Visual Studio, Qt, and similar, it can help a lot of people developing apps in Rust

jmrm··on Lapce
Some people need to use at least one time in life IDEs like Visual Basic 6 in a Pentium 4 to feel what it's like to use a fast IDE
jmrm··on Trading trust
It isn't for me. I would say I distrust Amazon as much as their bank (or vice versa).

Maybe I won't believe my bank won't give me access to my money tomorrow, or I won't believe Amazon will keep my money and won't send me the product I bought, but I know my bank try at all cost to introduce me to products that won't benefit me as much but would benefit them a lot, and I know Amazon would post Chinese knock-off products aside legit ones without any way to filter them.

jmrm··on How to copy a file between devices? (2022)
What I find weird is how easy to use is (was?) Wi-Fi Direct between Android phones and how this isn't a common thing in Windows or other non-mobile OSs.

I have just Discovered Windows 10 have Wi-Fi Direct if you have both Wi-Fi and Bluetooth adapters, and it's as easy as enabling it and right clicking a file to share it. It's a shame this isn't common knowledge nowadays

jmrm··on Write a Letter to Your Future Self
That's a really good idea I have never heard! I think this would help to focus a lot of young people if you encourage them to do it.
jmrm··on Flipper Zero: Multi-Tool Device for Geeks
I find really excessive having the police involved in those things, specially when are child doing dumb things that hurts nobody.

I done a worse "hacking" actions when I was 12 and I were grounded without any access to any electronic device outside TV at lunch/dinner

jmrm··on High-speed 10Gbps full-mesh network based on USB4 for just $47.98
AFAIK those can have 2/3 NVMe drives, and you can expand them even more with a PCI Express card to add even more NVMe drives
jmrm··on AMD proposes an FPGA subsystem user-space interface for Linux
More integration of FPGAs on computers can be really good to exploit relatively long pipeline algorithms that could run in parallel, specially signal processing ones.

GPUs are really fast but using some kind of instructions, while on a FPGA you can practically design what "instruction" is going to run. From the limited experience I had on CUDA but the complexity of your algorithm and how much branches your code have can make your code a lot slower than running it on a CPU, no matter the amount of CUDA cores you have.

It could be incredibly cool that in some near to mid future to being able to run an application that could run some kind of code in the FPGA, like they already does with the GPU, to solve some kind of problems, like audio, image, video processing, and probably machine learning (I don't know too much about current implementations), and with that user-space interface, it could even be earlier than I though.

jmrm··on Things I learned from teaching
Edit: Change "won't" to "don't", and "The will" to "They"
jmrm··on Things I learned from teaching
From experience, in the last 5-10 years most lecturers won't care if you go to classes or no. The will only require you to do continuous evaluation tasks.
jmrm··on Tesla shares 48V architecture with other automakers
>48V architecture also potentially improves overall electrical efficiency for reasons that I am not sufficiently qualified to explain beyond a kindergarten level

This is double bad in a green energy and EV website: On one hand, they admit they don't now why that happens, but on the other hand, they also didn't research just a bit more on that, and that's bad journalism.

Most of the comment threads in this HN post are a lot more informative than the article

jmrm··on Electric vehicle battery prices are falling faster than expected
Looking about how much expensive ICE cars have got isn't that difficult than 5 years ago.
jmrm··on uBlock-Origin 1.53.4 – 1.53.0 plus fix for Microsoft Edge
I do as a substitute for Chrome. When I have to access websites that use some kind of Chrome feature not implemented in Firefox, I use Edge instead of installing Chrome.

I also recommend Edge for people that like Chrome as it uses a lot less of resources than Chrome while being about as fast, specially in old or not-pretty-powerful computers

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