Hacker News: arijun

New comment by arijun in "Starship V3"

arijun — Wed, 13 May 2026 07:31:54 +0000

> moved a lot of stuff "inside" the engine

The level that they managed to fit everything inside of a simple-looking package was so high that the CEO of ULA (the Boeing/Lockheed Martin rocket company) thought they were lying when they first showed pictures [1].

[1] https://www.benzinga.com/news/24/08/40279896/spacex-presiden...

New comment by arijun in "Distributing Mac software is increasing my cortisol levels"

arijun — Sun, 10 May 2026 00:35:21 +0000

It seems like running with sandbox-exec should remove pretty much all the potential for an app to cause harm… is there a reason why it’s not the default, especially for these certificate-less apps?

New comment by arijun in "Valve releases Steam Controller CAD files under Creative Commons license"

arijun — Wed, 06 May 2026 21:06:02 +0000

I don’t think steam needs Rosetta anymore.

New comment by arijun in "Tesla owner won $10k in court for Tesla's FSD lies. Tesla is still fighting him"

arijun — Sun, 03 May 2026 02:56:03 +0000

Mobileye still sells to a large fraction of manufacturers (I think a plurality if not majority). You will still get variation in implementation, as Mobileye only does the sensing side, and the integration is done by the OEM.

New comment by arijun in "Your website is not for you"

arijun — Fri, 01 May 2026 13:58:47 +0000

Tons of consultants are missing expertise in their clients' wheelhouses. The client and consultant each have domain knowledge, and when those domains overlap, there might be conflicts.

If you hire an architect to redo your house, it's fine to say "I see where you're going with this thing for my kids, but I know them and they will never go for it."

New comment by arijun in "Belgium stops decommissioning nuclear power plants"

arijun — Thu, 30 Apr 2026 16:12:47 +0000

I think the issue comes with unknown unknowns. Before Fukushima someone might have said the same thing you just have, but a new disaster still came along and caused a lot of issues. I am still bullish on nuclear, but I think waving away concerns might do more harm than good.

New comment by arijun in "Belgium stops decommissioning nuclear power plants"

arijun — Thu, 30 Apr 2026 16:07:41 +0000

I may agree with your conclusion that old plants are safe enough (or at least take a deep dive study to see if their expected externality is worse than whatever would replace them). However:

> the worst disaster to ever happen without any external factors

The problem is external factors happen. You can’t just raise your hands up and say “wasn’t my fault,” when they do. A tsunami washing over a solar farm would be a lot safer than what happened at Fukushima.

New comment by arijun in "Zed 1.0"

arijun — Wed, 29 Apr 2026 18:00:30 +0000

I did consider that. I remember nope-ing out of alacritty in the early days after seeing the developers response to people requesting a scrollback buffer. It amounted to something like "I use tmux, and if you don't, you use the terminal wrong." It left a bad taste in my mouth.

New comment by arijun in "Zed 1.0"

arijun — Wed, 29 Apr 2026 16:17:33 +0000

TreeSitter is an amazing tool but is (purposefully) quite limited compared to an IDE--it doesn't even cross file boundaries, so go to definition is a non-starter. Zed uses LSPs like Rust Analyzer to fill that role.

New comment by arijun in "Zed 1.0"

arijun — Wed, 29 Apr 2026 16:11:54 +0000

What is Ghostty's advantage over Alacritty?

New comment by arijun in "Zed 1.0"

arijun — Wed, 29 Apr 2026 15:41:54 +0000

I suspect you may be operating in "Restricted mode," aka it doesn't know if it can trust the directory. In that mode, the main tools like Rust analyzer are quite restricted. All of your complaints should be resolved once Rust Analyzer/basedpyrite are up and running.

I do think they should have a more obvious warning that the current directory is untrusted, right now the little green warning in the corner is way too unobtrusive and will result in many people having the same issue as you.

New comment by arijun in "Waymo in Portland"

arijun — Tue, 28 Apr 2026 19:45:01 +0000

Are they losing money on a per-ride basis? I assumed they had large R&D costs, but that each ride would be near break even.

New comment by arijun in "Waymo in Portland"

arijun — Tue, 28 Apr 2026 19:38:33 +0000

I am a huge proponent of increased public transit (I'm of the opinion that every city should have a massive congestion tax with large swaths only accessible on foot or by public transit), but trains and buses would be wildly inconvenient for what op is describing.

Trying to take something like a windsurf board on a train, and then having to navigate multiple train changes along with whatever other baggage you have makes it a non-starter.

The "last mile problem" you mention is unresolved when it comes to getting from the closest public transit stop to the actual destination (frequently in a park or even off road).

And finally, the final cost to the rider would be significantly higher, as sleeper trains are not cheap.

I think America could do quite well if it focused on public transit in and between densely populated areas. Fewer cars in cities could make for denser cities, which in turn could allow for even more public transit. But outside of population centers, America is much more spread out than Europe, meaning that trains are less economical, and often wouldn't get the ridership that would allow them to make sense.

New comment by arijun in "Period tracking app has been yapping about your flow to Meta"

arijun — Tue, 28 Apr 2026 13:00:13 +0000

Ah you mean generally, not in this specific case.

New comment by arijun in "Period tracking app has been yapping about your flow to Meta"

arijun — Tue, 28 Apr 2026 12:34:26 +0000

What does thumbing their noses mean? They have been paying while continuing their behavior, or not paying at all?

The first seems like it could be resolved with an escalating fine schedule, and the second could be mitigated by requiring Apple/Google to remove it from the app store (one of the rare cases walled gardens are on consumers' side).

New comment by arijun in "Box to save memory in Rust"

arijun — Mon, 27 Apr 2026 12:56:12 +0000

What does Box give you that &str doesn’t?

New comment by arijun in "Alberta startup sells no-tech tractors for half price"

arijun — Thu, 23 Apr 2026 15:03:39 +0000

The backup camera mandate is associated with a 78% (!) reduction in fatalities in children in backover incidents. That’s a pretty high bar to cross to prove that the camera is more harmful the it is helpful, especially since, as others have said, you don’t have to use the screen for anything else.

New comment by arijun in "Acetaminophen vs. ibuprofen"

arijun — Wed, 22 Apr 2026 14:35:15 +0000

Why don't we package Acetaminophen with NAC? The reason I can think of is it will be delivered earlier than it normally is in cases of overdose. That would mean there will be less NAC in your system than at the peak dosage when the body starts using the pathway that needs it. But every little bit must help, no?

New comment by arijun in "I Made the "Next-Level" Camera and I love it"

arijun — Wed, 22 Apr 2026 00:33:22 +0000

The first quote is definitely talking about depth of focus; the linked image talks about depth of focus and how it compares to depth of field. As I understand it, depth of focus has a similar effect to depth of field. If your rays diverge more quickly on the side of your sensor, you will have a blurrier image for the same distance from the focal plane. Otherwise, how do you think depth of focus presents itself in the final image?

New comment by arijun in "Your Smart TV is taking screenshots of your screen every 15 seconds"

arijun — Wed, 22 Apr 2026 00:28:02 +0000

It seems like they do? That’s why gp suggested disconnecting the Wi-Fi entirely.