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rogers18445

348 karma · joined April 5, 2021

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rogers18445··on We're migrating many of our servers from Linux to FreeBSD
It sometimes manifests as audio stuttering (the kind which sounds like unstable sample rate) which suggests a lot of context switching, perhaps a scheduler problem. Had this problem intermittently and seemingly at random for many years. Sometimes would happen all day, then nothing for months. Quite Bizarre.
rogers18445··on Briar Desktop for Linux
There is another project which I'm keeping an eye on: https://cwtch.im/

source code: https://git.openprivacy.ca/cwtch.im

rogers18445··on Nuclear waste is a solved problem
Nuclear waste is little different from other toxic waste, the only difference is the potential to poison at some proximity without direct contact and even that is mitigated by encasing radioactive matter in non-radioactive matter. Yet we see nuclear waste singled out, for ideological and political reasons.
rogers18445··on Tab Unloading in Firefox 93
Linux and Android have that too. Called Zram. When using zstd a compression factor of 3.5 on swap memory is common.
rogers18445··on How percentile approximation works and why it's more useful than averages
Facebook seems to have an even better performance implementation using sqrt. Might make sense to port that over to Rust. https://github.com/facebook/folly/blob/master/folly/stats/TD...
rogers18445··on YouTube takes down the Ig Nobel show because of a 1914 recording
What incentive does she or anyone at youtube have to improve the situation? Creators aren't going to go anywhere else. And if you are someone who pushes through the changes internally no one who is in any position to benefit you will thank you and if it causes any legal problems you are going to be blamed.
rogers18445··on Clarifications regarding arrest of climate activist
> Under no circumstances can our encryption be bypassed, meaning emails, attachments, calendars, files, etc. cannot be compromised by legal orders.

This is false.

Each time you visit protonmail you re-download (cache can be invalidated) their client. It would be trivial for them to serve a specific user a modified client which uploads their encryption keys.

This problem is not specific to protonmail, any service which contends to be secure with respect to some server (the protocol relies on the client to decrypt stuff the server cannot) can be compromised this way because of implicit trust in the client software which can be modified at any time with no notice - making any auditing entirely meaningless in the case of targeted attacks.

This problem should perhaps be addressed by browsers since it seems they are becoming pseudo operating systems.

rogers18445··on Hash collision in Apple NeuralHash model
The hash was supposed to not be altered by minor perturbations to the input. This requirement assures that the hash can never be cryptographically secure, collision attacks therefore are trivial the moment the "security by obscurity" aspect is broken.
rogers18445··on A shot to prevent Lyme disease could be on its way
Ionizing radiation. Ingenious approach, sort of a pseudo-vaccine, kills and breaks apart a pathogen in the blood that was taken and when re-injected it presents a greater attack surface for the immune system to learn about the pathogen. Also whatever active measures the pathogen cells in the sample were taking to evade attention are no longer in effect since it's dead.
rogers18445··on Netflix intensifies VPN ban and targets residential IP addresses
What I don't understand is why these VPN users even bother to try and watch Netflix, just go to rarbg or 1337x and download whatever you want, far more convenient. You get to use a media player such as mpv as well, rather than the web garbage these paid streaming services have you use, +- 1 minute seeks are instant too.
rogers18445··on Ask HN: Do you have a process or a framework to learn specific skills quickly?
Start from the highest level, wrap all low level concepts into black boxes to call on demand from the higher level without understanding their internals. Unwrap black boxes for understanding only as needed.

Pretty much the opposite of "higher" level education.

rogers18445··on The Framework Laptop is now shipping
How many monitors can you plug into the laptop given the appropriate number of modules? Unlikely to be 4, but is it at least 2 or hopefully 3?
rogers18445··on Apple sued by teen wrongly accused of shoplifting by unreliable facial-rec tech
They can't, which is why such incompetence is plaguing every single bureaucracy in existence. If the bureaucrats have an incentive to not make mistakes they will err on the side of caution and only deal with cases where certainty is high - as opposed to putting in more effort to ascertain what is actually going on.
rogers18445··on The lab-leak theory: inside the fight to uncover Covid-19’s origins
What's interesting is that the way the Chinese govt responded and is responding is consistent with the fact that they believe it escaped one of their labs.

There is much to be said in not cooperating in an investigation against yourself, but active measures to prevent the investigation is a step further.

Ultimately the problem will be cracked, artificial selection and natural selection can be discerned given enough time and effort.

rogers18445··on Woke at Work: Why tech firms are trying to run away from politics and failing
How often does a single vote decide an election? Never? Therefore your optimal move is not to waste your time voting - you gain nothing. If everyone thought that way it would be bad perhaps? But they don't so it doesn't matter to you.

It might be argued discussing politics contributes to some emergent consensus forming that benefits society, but that consensus will form whether you participate or not and in exactly the same way unless you win the social lottery and have a disproportionate influence. So you are better off not wasting your time on political discussion, just keep track of the political trends the same way you would keep track of the trajectory of a storm heading towards you.

Tragedy of the commons applies to potential just as much as it does to existing resources. The Nash equilibrium is to consume all the resources you can right down to exhaustion because you alone cannot preserve them and others will consume them whether you do or not.

It is also a Nash equilibrium to conserve your time and not spend it on activities that would benefit the collective but not yourself - in the presence of a collective your contribution (and therefore influence and gain) approaches zero.

rogers18445··on Woke at Work: Why tech firms are trying to run away from politics and failing
Politics is what it is precisely because it is vacuous - you signal allegiance and that is all. You as an individual cannot influence anything any more than discussing an incoming storm would influence its trajectory.

But unlike the storm we know that the results of what society produces are determined by the society. And people don't realize or care that they as an individual are not society and have no influence over it in any meaningful capacity.

Many of our problems may be alleviated if game theory was a mandatory class in highschool. But then democracy would perhaps be in peril as people realize voting is as useless to them as is discussing politics. Tragedy of the commons can be a depressing thing.

rogers18445··on More Scientists Urge Broad Inquiry into Coronavirus Origins
Humans evolved melanin to resist UV while also needing UV for vitamin D synthesis. Your point is what exactly?
rogers18445··on More Scientists Urge Broad Inquiry into Coronavirus Origins
If you look at a cow knowing nothing about it or its history how do you know it was subject to artificial selection? The excessive production of milk or negative consequences that happen to it should it not be milked are some pretty big clues.

The information the process of evolution imparts on the genes/features of an organism differs based on whether it was natural or artificial.

rogers18445··on More Scientists Urge Broad Inquiry into Coronavirus Origins
Gain of function research is not engineering, they are often conflated for some reason. Gain of function is essentially artificial selection with bells and whistles.

Such manipulation would leak some information into the virus. Already it seems like the virus has great difficulty spreading outdoors while great success spreading indoors.

It may be a coincidence but evolution does encode environmental assumptions into the genes of an organism under selective pressure.

It may turn out that the virus makes certain assumptions about its environment and if those assumptions are not compatible with open spaces in nature - where animals live, but relies on closed environments (certain humidity range, absent air currents, lack of any resistance to sunlight spectra) depending on how many of these assumptions are present a natural explanation for the virus may be all but ruled out.

rogers18445··on A review of correlations between big five personality types and life outcomes
Big Five is an atheoretic construct, derived through factor analysis. Given names after the fact. Similar to IQ in that way - the difference being is that IQ ended with a single factor rather than 5.

Attacking the big five would be a fruitless endeavor, the tests have obvious substance and are reducible to 5 factors, can't do anything about that.

rogers18445··on Crazy New Ideas
The Mighty App will either die or become a privacy nightmare. Because a browser can run arbitrary compute it will be abused, and if they don't want to die they will have to spy on what their users are doing to find abuse.
rogers18445··on Study finds using Night Shift doesn’t improve sleep
Has there been any studies on the quantities of spectra your eyes would expect to get on a sunny day looking at grass or something? Then compare it to the spectra that comes off of a monitor and then you would have something to compare with.
rogers18445··on How Facebook encodes videos
I have been interested in this and to my surprise I was able to find just a single project that does something similar: https://github.com/master-of-zen/Av1an

It has the ability to do trial compression (w/ scene splitting) and evaluate quality loss up to a desired factor.

rogers18445··on Apple’s M1 Positioning Mocks the Entire x86 Business Model
zram is a game changer. I believed I needed to upgrade 16gb to 32gb, with zram and a decent cpu no I don't. 97% full memory + 20GB zram swap and no noticeable problems.
rogers18445··on Software designers, not engineers: An interview from alternative universe
This may sound good to someone but it doesn't make good sense. Data structures aren't free, they take space. Therefore there is a trade-off between space and compute complexity. And ultimately data structures don't transform themselves, an algorithm has to do the transformation...

Once you modeled your problem into some data structures you now need to make the decision of whether or not the transformation between input and output is easily achievable with an algorithm, if not then you need to further break down the problem into more data structures or your design is flawed.

rogers18445··on Software designers, not engineers: An interview from alternative universe
Not a single mention of data structures. It really is the heart of software when done properly. You can often tell if someone is a subscriber of that view depending on where they place their data structures in the source files.

Once the data layout is properly designed, the data transformations required become clear and the rest of grunt work.

rogers18445··on Rust is for Professionals
The vast majority of the code you write is glue code, you can be as inefficient when writing it as you want and it doesn't matter. Optimize only what the profiler tells you your cpu is spending real time in.
rogers18445··on Human taste buds can tell the difference between normal and 'heavy' water
You would need to drink enough of it for it to form a significant fraction of your body's water which would take days with fasting and weeks otherwise. And 10's of 1000's of $.
rogers18445··on Clubhouse data leak: 1.3M user records leaked online for free
This data seems to have been public and free for a while... Here: https://www.kaggle.com/johntukey/clubhouse-dataset
rogers18445··on Signal adds a payments feature with a privacy-focused cryptocurrency
Just what are they trying to do? They are a non-profit which would make a money grab somewhat impractical. Are they worried they are going to get successfully forked or something?

Their unquestioned faith in Intel SGX is somewhat pathetic to be fair.

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