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epx

1,275 karma · joined January 12, 2014

PU5EPX https://epxx.co
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epx··on OpenAI’s Navier-Stokes release included a Lean 4 formal proof
Well I want to know when we will have supersonic cheap flights using electric propulsion, based on this discovery
epx··on Train sim created by just one person is being called the best ever made
Just to play the routes.
epx··on Train sim created by just one person is being called the best ever made
Another notable, if old, train simulator from Japan is OpenBVE. It was easy to model railroads on it. Many short Brazilian routes were/are modeled in OpenBVE. It is particularly convincing since it simulates well the typical lateral wobbling that metric trains are known for.
epx··on IBM didn't want Microsoft to use the Tab key to move between dialog fields
+1, always thought it was an IBM standard, move with TAB and commit the form with ENTER.
epx··on I’m spending months coding the old way
It is all a conspiracy, now that mechanical keyboards are affordable and available and so many shapes and switches, they want to take this last pleasure (typing) from us
epx··on Data centers are transitioning from AC to DC
Having a single big DC converter at a home would help a lot with power factor (LED lamps connected directly to AC have terrible power factor).
epx··on Wired headphone sales are exploding
Have had two Airpods. Great devices, but broke down after a year or so and I don't want to spend their price every single year.
epx··on 10% of Firefox crashes are caused by bitflips
And checksummed filesystems.
epx··on Data has weight but only on SSDs
Was expecting Boltzmann and entropy to be involved at some point :(
epx··on 25 Years of Wikipedia
In the last 2-3 years, every contribution I made has been reverted by a reviewer or editor, either giving some excuse like lack of references, or none at all. Ceased to contribute to articles, and financially as well.
epx··on C++ std::move doesn't move anything: A deep dive into Value Categories
I understand the individual rationales of C++ things but I lost the faith on the whole thing.
epx··on We replaced H.264 streaming with JPEG screenshots (and it worked better)
Yes, it is strictly HTTP, not even persistent connections required.
epx··on We replaced H.264 streaming with JPEG screenshots (and it worked better)
Would HLS be an option? I publish my home security cameras via WebRTC, but I keep HLS as a escape for hotel/cafe WiFi situations (MediaMTX makes it easy to offer both).
epx··on Wikipedia says traffic is falling due to AI search summaries and social video
I have donated to them in the last two decades, and stopped because of this. Won't feed those beasts
epx··on Retiring Test-Ipv6.com
Thanks for the service. Showed that site to my own ISP's technicians when they were having difficulties to activate IPv6 support.
epx··on 1TB Raspberry Pi SSD on sale now for $70
It is a bit expensive for this kind of "dangerous" experimenting. I wish there was a ESP32-like capable of running Linux. (Actually, there is: BeagleBoard. But these are even more expensive.)
epx··on Top researchers leave Intel to build startup with 'the biggest, baddest CPU'
Aren't 99,99999% of these transistors used in cache?
epx··on Hollow Core Fiber (HCF)
Curious about how difficult would be to splice it.
epx··on How WhatsApp became an unstoppable global cultural force
At least here in Brazil, WhatsApp consolidated its position by working well in feature phones that ran J2ME and dominated the low-end market before Android. It took testing and adaptation to each and every available phone (as far as I can remember, J2ME was kind of a loose standard so developing a J2ME on one device did not guarantee it ran well, or at all, in any other). This, coupled with the possibility of eliding the outrageous SMS rates and the availability of EDGE data plans.
epx··on In ‘The Book Against Death,’ Elias Canetti rants against mortality
Imagine being able to live forever... in the dungeon of a dictatorship that is forever as well.
epx··on The Linux audio stack demystified
I miss the simplicity of OSS :\
epx··on The case for not sanitising fairy tales
They have and a lot.
epx··on How I tripped over the Debian weak keys vulnerability
Another interesting episode was the detection of RSA keys with common 'p' or 'q' factors using GCD: https://factorable.net/weakkeys12.extended.pdf
epx··on Ask HN: Who is still programming directly on a server?
Doing this with home automation.
epx··on Nokia made too many phones
Symbian was terrible. Working with it was worse than mining asbestos.
epx··on There's No Good Reason to Buy a Carbon Bike
Partly on my own experiences, used to have a steel bike w/o suspension that I rode for thousands km and it was a joy, the next bikes I've had were aluminum and locking the suspension makes them unbearable. But yes, could be the geometry as well.
epx··on Linux for Playstation 2
I purchased my XBox One for the same reason (cost-effective Blu-Ray player with the possibility of playing games from time to time).
epx··on There's No Good Reason to Buy a Carbon Bike
Some say carbon fiber has the steel-like dampening properties. And steel can be welded by anyone. OTOH an aluminum bike has to have suspension because it is so harsh to ride w/o it.

In general, the whole current bike culture with very expensive bikes/parts and a plethora of expensive and semi-proprietary tools is disgusting.

epx··on Tesla shares 48V architecture with other automakers
It would be great to have 48VDC in homes, for lightning, light appliances, etc. to centralize the whole power factor control in a single big power supply instead of doing it (poorly, or not at all) at every LED bulb.
epx··on Unaligned accesses in C/C++: what, why and solutions to do it properly
Had a problem like that while porting an IEEE 11073 parser library to Emscriptem. Funnily enough, the code worked happily in x86 and ARM environments, but failed in Emscriptem.
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