jhoechtl (u/jhoechtl)

jhoechtl commented on Ask HN: Why hasn't x86 caught up with Apple M series? · Posted by u/stephenheron

zipityzi · 6 days ago

It is likely the hardware effiency of their chips. Apple SoCs running industry-standard benchmarks still run very cool, yet still show dominant performance. The OS efficiency helps, but even under extreme stress tests like SPEC, the Apple SoCs dominate in perf & power.

See Lunar Lake on TSMC N3B, 4+4, on-package DRAM versus the M3 on TSMC N3B, 4+4, on-package DRAM: https://youtu.be/ymoiWv9BF7Q?t=531

The 258V (TSMC N3B) has a worse perf / W 1T curve than the Apple M1 (TSMC N5).

jhoechtl · 6 days ago

> It is likely the hardware effiency of their chips. Apple SoCs running industry-standard benchmarks still run very cool, yet still show dominant performance

Dieselgate?

jhoechtl commented on D2 (text to diagram tool) now supports ASCII renders d2lang.com/blog/ascii/... · Posted by u/alixanderwang

masfoobar · 12 days ago

Further update -- I see an emacs plugin. :-)

I am happy. Something to play with tonight.

jhoechtl · 12 days ago

Using it - better: used it. It's outdated, doesn't understand key words of recent D2 - versions and doesn't integrate well with emacs, i.e. default key bindings are IMHO not very emacsish.

jhoechtl commented on Ask HN: Why does the US Visa application website do a port-scan of my network? · Posted by u/mbix77

jhoechtl · 12 days ago

Checking if you are sharing torrents, run a tor node, mine coins?

jhoechtl commented on Airbus A320 Poised to Overtake Boeing 737 as Most-Delivered Commercial Airliner simpleflying.com/airbus-a... · Posted by u/helsinkiandrew

rsynnott · 14 days ago

Dreamliner is the Boeing 787. Are you thinking of the A380 superjumbo?

jhoechtl · 14 days ago

Uh yeah, my mistake

jhoechtl commented on Airbus A320 Poised to Overtake Boeing 737 as Most-Delivered Commercial Airliner simpleflying.com/airbus-a... · Posted by u/helsinkiandrew

Gareth321 · 14 days ago

The main issue arose because Boeing wanted to install larger, more fuel-efficient CFM LEAP-1B engines without changing the aircraft’s landing gear height too much (which would have required expensive redesigns of the fuselage and systems, triggering a new certification process). On earlier 737s, engines were already mounted quite far forward under the wing because of the aircraft’s low stance. The larger MAX engines could not fit in the same place without scraping the ground. Boeing moved the engines further forward and higher on the wing. This changed the center of thrust and lift characteristics. At high angles of attack (nose up), the repositioned engines created extra nose-up pitching moments, making the aircraft more prone to stall. To make the MAX “feel” like older 737s (so pilots wouldn’t require expensive retraining), Boeing added software — MCAS. MCAS automatically trims the horizontal stabilizer nose-down if it detects a high angle of attack, countering that engine-induced pitch-up. The tragedy was that MCAS initially relied on a single angle-of-attack sensor, so a faulty reading could (and did) trigger repeated nose-down inputs, leading to the two fatal crashes (Lion Air 610 and Ethiopian 302).

I think they added redundant sensors which should theoretically prevent this in future. IMHO, I think several issues compound here. They should have redesigned the fuselage. The engineering compromise is bad, but if handled with care, could have been done relatively safely. They opted for no additional pilot training re MCAS. This was a fatal mistake, compounded by them relying on a single sensor. Nothing in avionics relies on a single sensor for remaining in the air. That was insane. There MUST have been engineers screaming about safety who were ignored.

jhoechtl · 14 days ago

That makes a very intersting read and adds the necessary context to the previous comment how that plan can actually be legally sold.

jhoechtl commented on Airbus A320 Poised to Overtake Boeing 737 as Most-Delivered Commercial Airliner simpleflying.com/airbus-a... · Posted by u/helsinkiandrew

duke_sam · 14 days ago

It’s impressive that Airbus caught up with Boeing after a 20 year head start. It sounds like Airbus’s bet on the future paid off but the article reads more like a PR piece than a case for why the A320 out competed the 737.

jhoechtl · 14 days ago

> It sounds like Airbus’s bet on the future paid of

Well they did bet on the Dreamliner, fell on their nose and still recovered.

jhoechtl commented on Corporation for Public Broadcasting ceasing operations cpb.org/pressroom/Corpora... · Posted by u/coloneltcb

radiofreeeuropa · a month ago

When I'm not busy worrying about everything else, I worry that there's assuredly an explosion of local corruption, especially outside of cities large enough to still have something resembling actual local news media, that we can't even begin to get a handle on because it's... well, it's invisible now, that's why it's (surely—I mean, we can't possibly think corruption is dropping or even remaining steady, with the death of the small town paper and small-market TV news rooms, right?) happening in the first place.

I think it's, quietly and slowly, the thing that's going to doom our country to decline if something else doesn't get us first (which, there are certainly some things giving this one a run for its money). The Internet killed a pillar of democracy, replaced it with nothing that serves the same role, and we didn't even try to keep it from happening, so here we are, we doomed ourselves by embracing the Internet quickly and not trying to mitigate any harm it causes.

jhoechtl · a month ago

For some your comment might sound even comic but it is damn true. It safens me that the dangerous spiral is not seen by many others.

After all, the milenia old adage "bread and games" silences to many.

jhoechtl commented on Org tutorials orgmode.org/worg/org-tuto... · Posted by u/dargscisyhp

thecsw · a month ago

Orgmode got me through college, research, and at work, it really is the perfected markup language that can do a lot more than just being a markup language. The extensibility and out of the box export to other formats makes it immediately useful for at least 80% of common tasks.

It has ingrained itself so deeply into my muscle memory that I built out a whole website builder [1] and extended the language to support all kinds of nice QoL things for my website [2].

Something that as the other commenter here noted—I can rely on orgmode for many decades to come.

[1] https://github.com/thecsw/darkness [2] https://sandyuraz.com

jhoechtl · a month ago

I have on gripe, that is the mixture between org structure and org document heradings. I know, they are the same, and such a distinction doesn't exist.

You can start a "document" at any place in the org hierachy. I would rather prefer a distintion between these two concepts.

jhoechtl commented on Extending Emacs with Fennel (2024) andreyor.st/posts/2024-12... · Posted by u/Bogdanp

jhoechtl · a month ago

What makes a modern Lisp? I am aware of Fennel and Jannet. Anyone havng experience with one of those or another one I am not aware of?

jhoechtl commented on My favourite German word vurt.org/articles/my-favo... · Posted by u/taubek

jhoechtl · a month ago

Aufstand, Unterstand, Verstand, Umstand.

In german we have some of those -stand words.