HNHacker News
TopNewBestAskShowJobs

qdog

707 karma · joined October 19, 2011

submissionscomments
qdog··on Show HN: Credentials dumper for Linux using eBPF
Pretty much the same as loading an unsigned or untrusted kernel module, someone would have to get it loaded from a privileged account.
qdog··on Three Arrows Capital has defaulted on a loan worth more than $670M
My understanding is that FTX probably holds a ton of cryptocurrency assets or is invested in other companies with cryptocurrency exposure and does not want a 'contagion' to spread. This might work, but I am not sure FTX has enough assets to stop it, for a similar scenario https://www.federalreservehistory.org/essays/ltcm-near-failu...
qdog··on Vladimir Putin is pushing Russia into past: Maybe a generation, maybe a century
Hitler didn't start out running concentration camps, there was a long lead up to that. The Knight of Long Knives, where 'opponents' of the Nazis were assassinated was in 1934. Kristallnacht happened in late 1938. There are a number of similarities between Hitler and Putin, and we may yet see the beginning of pogroms against Jews, but I would say that the bans on homosexuality are showing us where this ends up going.

Putin also seems to be bent on returning to a former empire (see Third Reich comparisons).

qdog··on Would you take free land in rural America?
I grew up in a small, dying town in Texas. There was still Ambulance service, so really depends on how small (<800 people). There are generally no jobs, so there are plenty of childcare providers from other young parents (who probably grew up there) to retirees who need some extra cash. Quality of childcare is of course, variable.

Airport travel is probably only a good option for remote workers, I don't think I took a commercial flight till I was over 18. Most of the stable jobs are government related (town/county governement and school teachers) and often awarded via nepotism.

Land is cheap, but winds of 50MPH are the nromal, tornadoes, snow, heat, dust. I don't think I could ever go back to living there permanently, and it will only get worse during economic downturns.

I will also note that big box stores are probably detrimental to tax revenues, but my memory of the smaller stores was high prices and low inventory. We'd often drive 70 miles to the bigger city, as it was cheaper, wider selection. Nowadays I'm sure it's mostly Amazon or the big drive to Walmart, and no local store is going to change that. The Sears and Motgomery WArd catalogues were the general shopping tools, most of thee places I knew of peaked in the 50's, surged a bit in 80's with the Oil Boom, and then went back to dying.

qdog··on Hydrogen Is Not a Fuel, It’s a Cult
I constantly see people say they won't buy an EV because of recharge times and not being able to go on a 'road trip'. There seems to be some misunderstanding about how easy it will be to add hydrogen filling stations vs charging stations. While I don't know the % of people that actually care about charge/filling times, there are always some comments. I mean, I know someone in real life that says that, or at least did, and could certainly afford a Tesla, but still chooses a gas vehicle.

Now, will they eventually come around? Maybe, but a refillable combustion engine burning hydrogen certainly has some marketability, and perhaps some companies (like Toyota) made a miscalculation on how easy it would be to get people into EVs vs actually developing Hydrogen vehicles. I have a hard time understanding why Toyota has so little in EV offerings if this is not the case (and Toyota's advertising in Japan still doesn't mention full EV as the future).

qdog··on Low interest rates in advanced countries have pushed money into real estate
I mean for primary residence buyers, payments will still go up with interest, even though the asset price increase may slow or even decrease in value. So no, low interest rates are not really in your favor unless you already own the asset and are seeking new financing. Yes, people owning units and using them to buy new units while still being able to cover all their payments is seems like a problem, but it's almost a self-sustaining loop as long as they are able to keep increasing rents. It seems like this loop only stops in recessions. Some moves to make rents less attractive long-term might be helpful, but then you get the problem of who builds new housing if there isn't much profit in it?

I think phasing out mortgage interest deductions over time beginning with a cap would be one positive, but as we saw with the recent SALT cap, that effect is mostly overridden by other factors at least today.

I don't think there is a single entity or action that can be pointed at, there are many inputs, with only recession (in one city or the whole country) seeming to have a strong enough signal to override all the other inputs for the most part. Hiking interest rates to 15% ala the 80's also might work, but I don't expect to see anything near that.

qdog··on Low interest rates in advanced countries have pushed money into real estate
CA has prop 13 and we currently have incredibly low mortgage interest rates. SF has an amplified effect, but housing is going up faster than wages pretty much everywhere. Prices are up more than 40% in the desirable cities and town outside of SF (Austin, TX for example).

I don't see any simple ways to fix this, interest rate hikes will slow price growth, but payments will still go up. Some incremental changes (additional taxes on empty houses, rezoning, etc.) may have small changes, but do not seem likely to bring down affordability. Any small dip in affordability in the desirable places will likely see more migration there, unless we hit a huge recession, which based on my experience in 2008, still means most of us will miss out, as the price won't dip enough and the major asset holders just get to buy at a discount.

qdog··on The STEM Crisis Is a Myth (2013)
Seems like about 5 years ago things took off, but if you stick to small job pool areas you will probably see jobs near the same rate as they were back then. I took a SV-based job to get leveraged up, now work remote for same rate, which is like 50% more than I was making 1.5 years ago. Friend of mine just went to another company full remote, I think he 2x'd his total previous income from a job he'd worked at for years (and it was a company that could afford to pay him way more than they did, but advancing without changing jobs is hard).

I think basically any tech company that you've heard of will be willing to pay close to 300k for experience, although remember half of that will generally be stock, and the higher the compensation, the higher percentage will be stock-based.

If you have more than 5 years experience and make less than 200k/year, I suggest you start interviewing.

qdog··on Tesla second-quarter profits top $1B even as it struggles to handle demand
Right, I should have said more specifically Musk's FSD claims, the actual current function of autopilot seems pretty great vs. where we were.
qdog··on Tesla second-quarter profits top $1B even as it struggles to handle demand
Tesla's lead is not unassailable, my point is the other car companies are still lagging. Mach-e is the lone offering from Ford, who just released a brand new Bronco which has no electric version. Ford also has worse infrastructure support for charging. Fit and finish on Tesla seems to still be pretty poor from what I keep hearing, and warranty issues etc.

If/when Ford gets a lineup at least as broad as Tesla, I'll believe they are fully engaged to electric. The fact they are coming out with (I'm assuming) popular completely new vehicles like the Bronco that are still only ICE looks like they are still putting their R&D dollars into ICE far more than electric, or were until very recently. Heck, there are 2 more trim options available for the Bronco than the Mach-e.

qdog··on Tesla second-quarter profits top $1B even as it struggles to handle demand
News articles have been puplished for the last decade or so about how Tesla was going to die to these larger car companies when the larger car companies really start making electric cars. Which could be true, but so far, not so much. The Bolt is electric, but not a very good comparison to Tesla.

The offerings from the other car companies do not currently surpass Tesla in any meaningful way I can see, and the assumption that the other car companie can "will into being" a technical marvel better than Tesla, seems to continue to be only an assumption.

I do not like Tesla or Musk very much, and would love for my next pickup to me an electrified F150, but none of the current electric offerings seem all that appealing if you aren't looking for a Tesla or can't reasonably commute in a Leaf. I am still skeptical I will be able to buy an F150 electric within the next 2 or 3 years, and would not be surprised to have to wait 3-5 years as they work out the kinks. I am not looking to plunk down 100k+ on GM's Hummer, either.

Dislike for Musk aside, I have to acknowledge Tesla is delivering a reasonable vehicle (discounting the stupid auto -pilot that isn't auto-pilot), whereas most other companies are still delivering small numbers of electric vehicles, but large marketing campaigns, which seem aimed at getting people to continue to wait on buying an electric car, because the next best version is always just around the corner.

qdog··on How to build a small town in Texas
If you look a the overhead map of Marfa, you'll see it isn't particularly land constrained. However, people living in trailer houses on small lots in town are seeing their taxes go up, so they eventually have to move. Also perversely, the land around there you see with cows or crops on it is almost assuredly in an agricultural tax exemption status, so the excess land has little pressure to be sold for new housing.

It's perverse because it effectively forces poorer people to sell to rich people.

I will also note Texas has a homestead exemption, originating in 1876, so this is a well-known issue. It does not appear to be inflation or value indexed, and does not provide relief to low-income people when their house suddenly appreciates. There is a limit on how much the appraisal goes up every year, but it's certainly more than wage growth.

Regardless, the point is OP's ideal town this is not, the people moving there are not moving for the local jobs and economy in a nice little town. The incomes certainly don't support the high house prices.

qdog··on How to build a small town in Texas
I mean the people paying $150,000 for a lot in Marfa (looking at listing on Zillow) are probably not locals from those $39k income households. Perversely, the way property taxes in Texas work, this likely means that anyone under 65 is watching the property taxes climb faster than their income, increasing pressure to sell and move to a cheaper property.

It's a real town, but the service folks are largely priced out at this point (although I'd expect this real estate bubble might not last as there might not be that many people willing to buy at Austin prices in Marfa).

qdog··on How to build a small town in Texas
Yeah, just the idea of getting to Marfa hurts me to think about. Made the drive from El Paso to Austin a few times, can't imagine regularly visiting that area for pleasure or wanting to live there.
qdog··on How to build a small town in Texas
Marfa is in the middle of nowhere, the jobs seem to be of the landscaper/service industry type unless you are arriving with money from somewhere else.

Sounds more like a touristy set of rich estates at this point, I expect the laborers live in the surrounding area and drive into town just like a large city. I did some labor during HS and in the summer it was driving 20-40 miles from our small town in nowhere Texas for the jobs we did.

During the early 80's oil boom there were several small towns in Texas that kinda looked like OP's model, but once the boom went to bust they started dying and never recovered. Probably around the Austin area in the 60's a lot of places looked more idyllic (there were no stoplights between downtown Austin and I think Lampasas at that point), but it's all sprawled out and become a Metropolis at this point.

Not clear that any sufficiently attractive area would not end up being encompassed in suburbia or a high-end enclave (Westlake by Austin comes to mind).

qdog··on U.S. Backs 15% Global Minimum Tax to Curb Profit Shifting Overseas
When Apple Argentina sells phones to Apple USA, and Apple Argentina makes profits, while Apple USA always shows a loss, how does this work? Apple Global (which owns both other companies)of course, shows a profit and their stock still goes up.
qdog··on U.S. Backs 15% Global Minimum Tax to Curb Profit Shifting Overseas
This is a specific issue of US based companies hiding 'offshore' revenues that likely do not qualify as truly offshore. Also holding profits in foreign countries in an effort to outlast IRS rules to be able to 'repatriate' funds at a lower tax rate, or even somehow show a loss in the US.

The perfect is the enemy of the good enough, we cannot craft a perfect tax solution, but we can make it better.

qdog··on Golden Handcuffs
The problem is unless you hold onto the stock, you are not tied to the long-term growth of the company.

I think this is really trying to optimize to keep only the high performers without having to have a traditional stack ranking system.

Interestingly, I recall the Google article about the highest performing teams not being made up of the highest performing individuals, but the best communicators. No one seems to be trying to hire to create the best teams, but still just the highest performing individuals. Perhaps there is a Moneyball in tech work.

qdog··on Modern C and What We Can Learn from It [video]
In C, n=f(x) plainly means the variable n is assigned the value returned from f(x). While you don't know what f(x) does, you can tell it is a function.

In c++, the = could be a function too, that does unexpected things. Critically, if you are unaware of the side effects of that = operator, you may be doing things you don't want to do. The most likely issue would be performance if you are repeatedly using the = operator thinking it is a simple operation. Like if someone is being clever and uses the Active Record model and you are unexpectedly doing database writes with what you thought was a local object with no side effects.

To not have this happen, of course, you could read the entire object definition, but then you need everyone working on the project to have 100% of the code committed to memory. This is why you will likely find rules in the coding style guide of whatever company banning such practice after someone is bitten by it.

qdog··on New Cobalt-free Li-ion battery reduces costs with similar design and performance
What about the weight of the entire drive system? Still not the same thing, as the weight of batteries doesn't change as you drive. Not sure, as a quick search doesn't give me the right data, but it seem like the ICE setup requires more engine/exhaust etc. weight, so it seems likely the amount of efficiency required for batteries is less than gas at the current tech level.
qdog··on Reddit shuts down subreddits including r/The_Donald and r/ChapoTrapHouse
Biggest difference I have seen is a change from random trolls (often who were easy to identify and proud of who what/they were) to larger, organized campaigns. Even if the campaign isn't running on your forum, people are reading Facebook or whatever and this causes many people to start spouting similar stuff they have seen. And even here, the comments often get close to looking like astro-turfing. I barely read the comments anymore, usually only a quick glance to see if there are more links relevant to the topic.
qdog··on IBM confirms layoffs are happening, but won’t provide details
I think it was more like the bottom 5%.

The theory is by cutting the bottom and always hiring you constantly improve your workforce.

The reality is then you will always fill reqs, sometimes as quickly as possible, to make sure there is a sacrifice for the gods. Perversely, a team of high-performers is actually punished, as everyone is also ranked against each other, so even if you have the top 10 performers in the company, one or more of them may be fired and will often have their compensation effected (less/no RSUs etc.).

Certainly that was how it felt about 5 years ago, not sure about today.

qdog··on How to Hide a Billion Dollars
The UK has a much stronger Rule of Law, if the monarchs are constitutionally granted wealth it's different than taking things illegally from the treasury. I'm sure in the past you could argue that happened, but if a royal in the UK attempted to assert themselves as ruler and raid the treasury for their personal fortune, one would think the system would move to prevent them. Perhaps Brexit and Boris Johnson are going to prove us wrong, but currently I don't believe UK == Swaziland is a valid comparison.
qdog··on “10x engineers”: Stereotypes and research
That's pretty much my observation, I've seen many high-output types, but seen maybe one or two people who "might" be far above average output/quality. Generally I see people who become 10x by pushing down the effectiveness of those around them to 1x. If I write something that works, but am then told to pretty much re-do it all to fit a different design, my productivity becomes pretty low. Yes, I could start with a different design, but my impression has been that there is basically no initial design I can do that won't be re-designed by the '10x' individual, because they feel it's their job to 'improve' everyone else's design.

Now, as another commentor pointed out, some people can be brought in to solve a problem others cannot solve (simulated annealing solution, which I'll just say "oooook" to). Sure, there are individuals who can solve actual problems others can't, but those actual problems are very rare. Most of the problems I have are 'ship the product' types, not 'solve this one very hard problem' types.

qdog··on An eBPF overview, part 2: Machine and bytecode
bpf_ktime_get_ns() returns nanoseconds, is it not adequate?

I can't really speak to the use of dma and memory, I haven't really looked at that.

qdog··on Tesla Model Y
The competition would be specific models, https://cleantechnica.com/2019/01/04/tesla-model-3-sales-32-...

Rav4 Hybrid also uses some Tesla tech. While unclear if they will continue to dominate market segments they enter, Tesla has been more successful than I ha d imagined by this point.

qdog··on Hard Part of Computer Science? Getting into Class
There's also decent CS programs in other schools in that area, if someone really wants study CS and can't get into UT's program.
qdog··on Are We in the Middle of a Programming Bubble?
California is a fairly unique place, even in the U.S. Despite the costs of living there, it continues to attract talent and investment. The job market there is very fluid, as you can work for a competitor or start your own competitor, due to not allowing non-compete clauses to be enforced.

I don't know the laws in Sweden, but unless they have an environment similar to California the tech industry is not going to be as strong.

That said, at least for me in the U.S., the biggest bump in pay has always been from finding a new job offer.

qdog··on Learn EBPF Tracing: Tutorial and Examples
Ah, true. I should note I build a statically linked llvm so I can deploy my project on different versions. The pre-built llvm should work for most people.
qdog··on Learn EBPF Tracing: Tutorial and Examples
I have ran ebpf on ubuntu, so not sure what the difference is with Debian. I will note that clang 3.7 is fairly old at this point, I have started building a more recent llvm+clang (7.0.0 stable) myself instead of relying on the installed package, then building bcc against that. You might try that route, although llvm takes an eternity to build.
← PreviousPage 2 of 12Next →