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elteto

4,723 karma · joined May 12, 2012

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elteto··on Sub-$200 Lidar could reshuffle auto sensor economics
I think that was implied in my comment: that Tesla would use Waymo's stack for free navigation and self-driving, instead of not quite-FSD.
elteto··on Sub-$200 Lidar could reshuffle auto sensor economics
In a saner world Teslas would be running Waymo's self-driving stack instead of the half-baked "might kill you at any time" not quite-FSD.
elteto··on Canvas_ity: A tiny, single-header <canvas>-like 2D rasterizer for C++
I think you are romanticizing the past. I’m pretty sure integration of third party C or C++ code sucked as much back then if not more. You just didn’t have as much of those dependencies because open source was in its infancy and the number of available libraries was much smaller too.
elteto··on Canvas_ity: A tiny, single-header <canvas>-like 2D rasterizer for C++
Because not everyone is using Makefiles or CMake.

A true header-only library should be build-system agnostic and this is one way to do that.

We can argue about build systems for C++ all day long and never come to an agreement. With this approach this piece of code can be used anywhere.

elteto··on Review of 1984 by Isaac Asimov (1980)
After reading Asimov's review, I think the book has aged much better to be honest.
elteto··on xAI joins SpaceX
Pre-IPO price padding. xAI is going nowhere but at least for now it has some value. Move it under SpaceX, bump up SpaceX’s valuation and therefore it’s opening IPO price. Then kill xAI and write it off.
elteto··on 4x faster network file sync with rclone (vs rsync) (2025)
You have to do `find ... -print0` so find also uses \0 as the separator.
elteto··on Amazon cuts 16k jobs
A pro-labor republican that worked on global AI enablement. So many contradictions that they almost cancel all out!
elteto··on Everything you never wanted to know about file locking (2010)
It’s even atomic on NFS. In fact, it’s probably the only reliable locking mechanism on NFS.
elteto··on Janet Jackson had the power to crash laptop computers (2022)
Just a small nitpick: the Tacoma Narrows bridge didn’t collapse because of resonance but because of flutter. It’s a common misconception.

For resonance the external driving force must match the resonance frequency of the system, but wind is rarely/never purely sinusoidal.

elteto··on Unifi Travel Router
Not to take away from this device, I think it’s pretty neat. But you can run tailscale on anything, even Apple TVs. If you have a Unifi network odds are that you have at least one spare computing device that can run tailscale.
elteto··on The C++ standard for the F-35 Fighter Jet [video]
So you can’t use them then.
elteto··on The C++ standard for the F-35 Fighter Jet [video]
Not exactly sure what your experience is, but if you work with in an -fno-exceptions codebase then you know that STL containers are not usable in that regime (with the exception of std::tuple it seems, see freestanding comment below). I would argue that the majority of use cases of the STL is for its containers.

So, what exact parts of the STL do you use in your code base? Most be mostly compile time stuff (types, type trait, etc).

elteto··on The C++ standard for the F-35 Fighter Jet [video]
Well, it's mostly type definitions and compiler stuff, like type_traits. Although I'm pleasantly surprised that std::tuple is fully supported. It looks like C++26 will bring in a lot more support for freestanding stuff.

No algorithms or containers, which to me is probably 90% of what is most heavily used of the STL.

elteto··on The C++ standard for the F-35 Fighter Jet [video]
If you compile with -fno-exceptions you just lost almost all of the STL.

You can compile with exceptions enabled, use the STL, but strictly enforce no allocations after initialization. It depends on how strict is the spec you are trying to hit.

elteto··on Durin is a library for reading and writing the Dwarf debugging format
"The dwarves debugged too greedily and too deep. You know what they awoke in the darkness of GDB-dum... stack corruption and flame.“
elteto··on Americans no longer see four-year college degrees as worth the cost
It's not undermining, it's asserting/showing off their independence. India doesn't want to play for anyone's team, so they play on everyone's team. It's a reminder to all sides that they are not an automatic partner to be taken for granted.
elteto··on APT Rust requirement raises questions
Maybe they are just really tired of having to deal with people who constantly object and throw every possible obstacle they can on the way.
elteto··on AMD GPUs Go Brrr
It seems that AMD, like many other companies, doesn’t “get” software. It’s a cost-center, a nuisance, not really hard engineering, the community will take care of that, etc. It’s pretty ironic.
elteto··on HipKittens: Fast and furious AMD kernels
Counterproof: attempt to modify your graphics card. Then attempt to modify a piece of code. Which one was easier?
elteto··on HipKittens: Fast and furious AMD kernels
From the performance comparison table, basically AMD could be NVIDIA right now, but they aren’t because… software?

That’s a complete institutional and leadership failure.

Ironically, building chips is the actual _hard_ part. The software and the compilers are not trivial but the iteration speed is almost infinite by comparison.

It goes to show that some companies just don’t “get” software. Not even AMD!

elteto··on How Airbus took off
The Boeing execs had their bonuses held against their heads.
elteto··on Reverse engineering a neural network's clever solution to binary addition (2023)
Right, binary gates are discrete elements but neural networks operate on a continuous domain.

I'm reminded of the Feynman anecdote when he went to work for Thinking Machines and they gave him some task related to figuring out routing in the CPU network of the machine, which is a discrete problem. He came back with a solution that used partial differential equations, which surprised everyone.

elteto··on Context engineering
Are there any open source examples of good context engineering or agent systems?
elteto··on The longest baseball game took 33 innings to win
Please, no one tell Peter Thiel about the 33 innings. He might claim the umpire is the Antichrist.
elteto··on SpaceX launches Starship megarocket on 11th test flight
The booster and most engines were reused in this test flight.
elteto··on Zig builds are getting faster
People keep saying this or other variants but I really don’t see the resemblance between C and Zig. At all.
elteto··on China is run by engineers. America is run by lawyers
Well, definitely not "China bad" but absolutely "CCP bad". That's not even up for discussion.
elteto··on China is run by engineers. America is run by lawyers
I think that is a good starting point.
elteto··on China is run by engineers. America is run by lawyers
That is purely driven by national security priorities, I mean, _clearly_. The engineering is just how you work towards meeting those priorities. If it had been making candy or melting ice then you can bet that's what they were going to focus on.
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