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avalys commented on Southwest Is Changing Its Rules for Plus-Size Passengers   nytimes.com/2025/08/22/tr... · Posted by u/bookofjoe
avalys · 2 days ago
I’d like to see airlines charge for carryons and allow checked bags for free.

Carryons are by far the best experience for a passenger - your bag is there with you and you don’t have to arrive at the airport early, nor wait around at baggage claim. All business and frequent travelers would pay extra for this.

Meanwhile, carryons are worse for everyone else, and for the airline! They massively slow down the boarding and deboarding process while you wait for people to heft their massive suitcases up into the bins.

Fewer carryons means faster turnarounds which means more profit.

Thank you for listening to my talk.

avalys commented on The decline of high-tech manufacturing in the United States   blog.waldrn.com/p/the-dec... · Posted by u/giuliomagnifico
laughing_man · 7 days ago
1987, literally the peak cold war military spending, is an interesting year for comparison. Much of that high tech manufacturing (and employment) was underwritten by the taxpayers through the Pentagon, and that military tech eventually made its way into the civilian market.

Very soon after the US took a decade-long "procurement holiday", and we lost an enormous amount of manufacturing expertise.

Can we bring those jobs back? Sure, with a lot of tax money. Do we want to? I do - the value of "service economy" jobs is in free fall as companies replace white collar employees with LLMs.

avalys · 7 days ago
Is this really about military spending? The US used to make so many products and appliances domestically - everything from steel to uranium to doorknobs to refrigerators to chemicals to CRT displays to roofing shingles, and everything in between.

The military benefited from the massive industrial base that supported this production - but it didn’t create it.

And now the loss of that domestic manufacturing base is largely why military production - and indeed, any kind of large-scale endeavor in the US, including construction - is slow and expensive.

avalys commented on What does it mean to be thirsty?   quantamagazine.org/what-d... · Posted by u/pseudolus
hackitup7 · 11 days ago
I would still consider the glaucoma check. I don't think that you can even necessarily get a Flammer syndrome diagnosis, it's not a disease afaik, just a pattern.

Glaucoma is the condition that matters and if you don't run the (fast, cheap, painless) check you can miss a serious issue.

avalys · 11 days ago
If the risk is normal-tension glaucoma, then simply measuring ocular pressures isn't going to be valuable. What test are you thinking of?
avalys commented on What does it mean to be thirsty?   quantamagazine.org/what-d... · Posted by u/pseudolus
beingfit · 12 days ago
> I just figured that I couldn't be dehydrated if I wasn't thirsty

This is what I learned, but from others online. I also learned that sometimes our body/mind may mistake thirst for hunger and we may end up eating some food instead of just drinking water (this is generalizing things a bit). This made me a little more aware of what I think of as hunger signals and I started tracking water intake (other than from food) everyday.

BTW, a tiny nitpick: it’s “led”, not “lead”, when you talking about the past.

avalys · 12 days ago
As a stickler for spelling myself, I had to go back and check. I meant that sentence in the present tense as these situations continue to occur.
avalys commented on What does it mean to be thirsty?   quantamagazine.org/what-d... · Posted by u/pseudolus
hackitup7 · 12 days ago
A quick note for people responding, you might have a mild form of vascular dysregulation or flammer's syndrome. It can manifest as migraines and a decreased sensation of thirst, as well as other symptoms like cold extremities.

Afaik it's pretty harmless in general but it is associated with certain vision issues (normal tension glaucoma). Glaucoma is irreversible but has many treatment options especially if caught early. But you MUST go in for a (fast, cheap, painless) screening to catch it, it's really hard to detect unless there are issues otherwise. Please consider this if you really are showing a lot of these symptoms.

https://en.wikipedia.org/wiki/Flammer_syndrome

avalys · 12 days ago
How interesting!

I have had mild tinnitus my whole life (with no obvious lifestyle cause), and my migraines do often manifest as pain / pressure behind the eyelid. But I don't have any of the myriad other symptoms listed for Flammer syndrome - I sleep fine, my blood pressure is fine, I'm pretty solidly built (not underweight), I don't get cold easily, etc.

It is interesting to consider I might some sort of related disorder, though!

avalys commented on What does it mean to be thirsty?   quantamagazine.org/what-d... · Posted by u/pseudolus
avalys · 12 days ago
I'm so interested in this topic, for a weird reason.

Since I was a kid, I've thought I was "prone to migraines", and ascribed various triggers to them - sun exposure, heat, physical exertion, mental exertion, etc. I'd get a migraine sometimes after a long hike on a weekend - and also a long business meeting entirely indoors in an air-conditioned space.

Only when I was around 35, did I figure something out. All these situations lead to me getting dehydrated without any obvious accompanying feeling of thirst. Hiking all day will do it - walking around an outdoor shopping mall on a hot afternoon - or sitting in an all-day business meeting focused on the work at hand and forgetting to drink. And all these situations lead to a migraine - my only "migraine" trigger is simple dehydration, nothing more complicated.

The weird thing is, it took me a long time (decades) to put this together, because I just figured that I couldn't be dehydrated if I wasn't thirsty, and I had no association between "feeling thirsty" and getting a migraine.

I get what I consider normally thirsty in other circumstances, but somehow there's a failure mode where my body doesn't warn me. So now I just remember to chug lots of water (and electrolytes) if I'm exerting myself even if I don't really feel thirsty, and I can systematically avoid triggering migraines.

Now that I understand it the association is quite clear and obvious in retrospect.

avalys commented on GPTs and Feeling Left Behind   whynothugo.nl/journal/202... · Posted by u/Bogdanp
godelski · 14 days ago

  > but it saved me from a bunch of tedious work that I don’t enjoy anyway.
I play music and find practicing scales and learning music theory much more tedious and less enjoyable. I'd much rather be playing actual songs and having that flow where it is like the music is just coming out of me. But the reason I do the tedious stuff is because I don't get the latter stuff without the former. I can still learn to play songs without learning scales and just practice the lines. This is much more enjoyable and feels much faster. I'd even argue it is much faster if we're only measuring how fast I learn a single song. But when we talk about learning multiple songs, it is overall slower. Doing the tedious stuff helps me learn the foundation of everything. Without doing the tedious things I'd never develop the skills to sight read or learn to play a song by ear.

I don't think this is different with any other skill. I see the same effect in programming. I even see the same effect in writing a single program. I think this is totally a fine strategy for "smaller" programs because the "gap" is small. But as the complexity increases then that gap widens. Most of my time isn't spent writing lines of code, most of my time is spent planning and understanding. Complexity often comes from how a bunch of really simple things interact. The complexity of music is not the literal notes, it is how everything fits together. Personally, I'll take a bit more time to write those lines if it makes me quicker at solving the harder problem. I still write notes on pen and paper even if I never look at them afterwards because the act of writing does a lot to help make those things stick.

avalys · 14 days ago
Your point is quite valid for people who are new to software engineering, and learning things for the first time. But in this regard I don’t see AI as any different from other tools that have exceeded human capabilities in one way or another.

Even though calculators and Mathematica exist, a mathematics student should learn to do arithmetic, long division, calculus, etc. by hand.

Even though AI tools (and for that matter, standard libraries) exist that can do it better and faster, a computer science student should still learn to implement a linked list, etc. from scratch.

But a professional software engineer will use AI and standard libraries, just like a professional physicist will use a calculator and Mathematica.

Calculators existed when I was a kid. I still learned arithmetic without cheating. I’m sure educators will figure out how to teach students software engineering (and writing, and thinking) without cheating.

avalys commented on Why insurers worry the world could soon become uninsurable   cnbc.com/2025/08/08/clima... · Posted by u/mooreds
beej71 · 14 days ago
> They'll happily insure high risk stuff, for an appropriate premium.

From what I've seen, this isn't always the case. My parents' insurer stopped offering fire coverage in their area with no option to buy at a higher price.

avalys · 14 days ago
This is likely because the state they live in does not allow insurance companies to price their coverage according to risk, and applies political pressure when they try to do so. Insurance companies are demonized and characterized as heartless, rapacious and greedy, despite the fact that they’re probably losing money at current prices. So, many companies decide to exit the market rather than be forced to sell a service that they expect to lose money on.
avalys commented on GPTs and Feeling Left Behind   whynothugo.nl/journal/202... · Posted by u/Bogdanp
avalys · 15 days ago
I have a degree in CS from MIT and did professional software engineering from 2004 - 2020.

I recently started a company in another field and haven’t done any real development for about 4 years.

Earlier this summer I took a vacation and decided to start a small software hobby project specific to my industry. I decided to try out Cursor for the first time.

I found it incredibly helpful at saving time implementing all the bullshit involved in starting a new code base - setting up a build system, looking up libraries and APIs, implementing a framework for configuration and I/O, etc.

Yes, I still had to do some of the hard parts myself, and (probably most relevant) I still had to understand the code it was writing and correct it when it went down the wrong direction. I literally just told Cursor “No, why do it that way when you could do it much simpler by X”, and usually it fixed it.

A few times, after writing a bunch of code myself, I compiled the project for the first time in a while and (as one does) ran into a forest of inscrutable C++ template errors. Rather than spend my time scrolling through all of them I just told cursor “fix the compile errors”, and sure enough, it did it.

Another example - you can tell it things like “implement comparison operators for this class”, and it’s done in 5 seconds.

As the project got more complicated, I found it super useful to write tests for behaviors I wanted, and just tell it “make this test pass”. It really does a decent job of understanding the codebase and adding onto it like a junior developer would.

Using an IDE that gives it access to your whole codebase (including build system and tests) is key. Using ChatGPT standalone and pasting stuff in is not where the value is.

It’s nowhere near able to do the entire project from scratch, but it saved me from a bunch of tedious work that I don’t enjoy anyway.

Seems valuable enough to me!

avalys commented on GPT-5 leaked system prompt?   gist.github.com/maoxiaoke... · Posted by u/maoxiaoke
OsrsNeedsf2P · 16 days ago
I find it interesting how many times they have to repeat instructions, i.e:

> Address your message `to=bio` and write *just plain text*. Do *not* write JSON, under any circumstances [...] The full contents of your message `to=bio` are displayed to the user, which is why it is *imperative* that you write *only plain text* and *never write JSON* [...] Follow the style of these examples and, again, *never write JSON*

avalys · 16 days ago
to=bio? As in, “this message is for the meatbag”?

That’s disconcerting!

u/avalys

KarmaCake day5404May 19, 2017View Original