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NaibofTabr

@ NaibofTabr @infosec.pub

Posts
2
Comments
2507
Joined
3 yr. ago

  • What would it look like if time were expanding?

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  • The biggest problem with measuring any such effect is our frame of reference. All of our measurement tools are stuck in Sol's gravity well, which is itself stuck in the Milky Way's gravity well, and so on.

    There's a lot that we don't know, because our viewpoint is limited. For example, the gaps in this chart of observed galaxies:

    are caused by all of the objects in the Milky Way which are blocking our view of more distant objects.

    We do know that there are a lot of other galaxies around ours, and that they move through space along measurable and predictable paths. Gravity affects time, so time doesn't necessarily progress uniformly everywhere, but at least for the observable universe it must be fairly consistent otherwise we would see strange behavior in the frequencies of light from observed astronomical objects (it would mess with redshift/blueshift). Astronomy relies heavily on redshift/blueshift data, so anomalies would not go unnoticed.

  • What would it look like if time were expanding?

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  • I mean, we do know that time slows down in a gravitational field. And it speeds up for fast objects. We have to consider that with our GPS (and similar) satellites. They are basically just atomic clocks sending down their current time. They have already drifted from clocks on the ground by several seconds.

    GPS is my favorite demonstration of relativity in practice. Technically, the clocks have not drifted, but are in fact self-correcting and account for the effects of special and general relativity.

    Special relativity predicts that as the velocity of an object increases (in a given frame), its time slows down (as measured in that frame). For instance, the frequency of the atomic clocks moving at GPS orbital speeds will tick more slowly than stationary clocks [...] The result is an error of about -7.2 μs/day in the satellite.

    According to general relativity, the presence of gravitating bodies (like Earth) curves spacetime, which makes comparing clocks not as straightforward as in special relativity. [...] In case of the GPS, the receivers are closer to the center of Earth than the satellites, causing the clocks at the altitude of the satellite to be faster by a factor of 5×10−10, or about +45.8 μs/day. This gravitational frequency shift is measurable.

    Combined, these sources of time dilation cause the clocks on the satellites to gain 38.6 microseconds per day relative to the clocks on the ground. This is a difference of 4.465 parts in 1010. Without correction, errors of roughly 11.4 km/day would accumulate in the position.

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

  • Attacking Iran ‘won’t make the Epstein files go away,’ Republican lawmaker warns Trump

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  • Only a Sith deals in absolutes.

  • Cyberulepunk

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  • It's a story, you know, fiction, printed on cheap paper made from cheap wood pulp... maybe we could call it pulp fiction?

  • Real change isn’t at the polls

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  • just doing the FAFO approach.

    Please consider the following:

    How did early humans find out which food sources were safe to eat, and which were not?

  • Real change isn’t at the polls

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  • the thing is that cleaner production methods benefit big industry because they get to produce higher-quality products which makes them more profit due to higher price.

    Sure, maybe in the long run. But that will cost money now and the quarterly earnings report is due.

  • Real change isn’t at the polls

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  • So all those problems are fixed but somehow new ones keep popping up?

    Yes. Welcome to reality.

    Maybe it wasnt real change but actually just band aids and the root cause stayed unadressed through all those years.

    The entire history of human civilization is an example of building the airplane while you're flying it, without a plan for either the airplane construction or the flight path.

    Somehow the system you want to maintain and support keeps creating these problems.

    There are a lot of problems, and yes the solutions to old problems often create new problems, because reality is not a video game where collecting a dozen McGuffins ends the quest and you get a reward and then never worry about that issue again.

    Sometimes the airplane crashes: https://fallofcivilizationspodcast.com/

    The options are:

    1. Pick up the pieces and try again.
    2. Give up and die where you are.

  • Real change isn’t at the polls

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  • You could have spent a century testing CFCs in a lab environment. The problem they caused with the ozone layer would still not have become apparent until CFCs were used in the real world where they could interact with the ozone layer.

    There is no amount of testing and preparation that can account for every possible outcome or interaction.

    Asbestos is another good example. It is naturally occurring and quite common and was used as a building material for millennia. It is lightweight but strong, flexible in thin sheets, and fireproof. It's an extremely useful and versatile material, and abundantly available.

    It wasn't until the 1900s that medical testing linked asbestos fibers to several health risks. It basically required the entire history of human development for our medical technology to identify the danger. No amount of testing, analysis or review done prior would have mattered.

  • The same people who rage against authority love moderating communities where their ideology is the only one allowed

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  • Humans spent thousands of years without rulers.

    orly? which thousands?

  • Real change isn’t at the polls

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  • The hole in the ozone layer is now repairing due to international regulation of CFCs

    Acid rain is no longer a problem because of regulation of sulfur dioxide emissions

    Leaded gasoline has now been banned in every country

    Asbestos exposure is rare now due to regulatory controls. It's bad that it took so long to get done.

    Government regulation is effective in protecting people from health risks.

    Collective action (e.g. through voting) is effective in establishing such regulation.

    If you spread the lie that voting in favor of such policies (and politicians who support them) is a useless waste of time, you are spreading industry propaganda.

    Effective, large-scale change is IN FACT at the polls.

    It is nowhere else.

  • Real change isn’t at the polls

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  • Yes, actually.

    Do you remember the hole in the ozone layer? It's self-repairing now because the chemicals that were damaging it were internationally banned - by government regulation.

    Do you remember the acid rain scare? It's not a problem now because of regulatory control of sulfur dioxide emissions.

    Do you know why gasoline is unleaded?

    Do you know why asbestos is banned in building materials?

    Government regulation actively improves human health and wellbeing, and has prevented several outright disasters from progressing.

    Real change does, in fact, come from voting for politicians that support effective environmental policies. It is industry propaganda that wants you to believe that regulation is ineffective.

  • The same people who rage against authority love moderating communities where their ideology is the only one allowed

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  • It just means no rulers, but that's not how it works

    ...anywhere in reality.

  • AI is making junior devs useless

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  • effectively work with AI and know how to QA.

    These are antithetical.

    Using generative algorithms to perform a complex skill leads to deterioration of the skill. The more you rely on the algorithm to perform a given task, the less effective you will be at performing QA of that task, as your grasp of the specifics of the task fades.

    Any developer who has not spent time learning to "reliably hand-code" will be completely useless for performing any code QA. If the industry does not provide time, space, and incentives for junior developers to learn those skills on their own, the future will be void of any effective QA.

    I know where it frequently fails, I’m very pleased with the output. And, I’ve shipped 4 fully QA’d apps in the past month.

    Yes, well, you don't know what you don't know.

    I would still be on the first one without AI.

    The quality of a product is proportional to the amount of time and (human) attention spent on the product.

  • Being British

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  • Keep a stiff upper lip, old chap.

  • Somehow, I've been chosen to speak at my company's internal meeting on whether or not AI integration has actually been useful to us. I want feedback on my thoughts + inputs from you people too.

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  • for an LLM the SaturnV technical manuals and a conspiracy message board are the same.

    This is well put, and I'm probably going to plagiarize it heavily.

    you want to keep people in the job.

    This may not be a goal of the company leadership. Most business AI "productivity" tools are being sold explicitly on the idea that they can replace 10-15% of the buyer's workforce.

  • Germany’s AfD sparks fears it is helping Russia with inquiry on NATO weaknesses

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  • Pakistan bombs Kabul in 'open war' on Afghanistan's Taliban government

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  • Afghanistan has basically always been a warzone. The territory there changed hands fairly often, especially after Alexander, centuries before it became the area identified as Afghanistan today.

    The feuds between people groups there are from long before "Western nations" were even a thing. Some of them pre-date recorded history. The biggest mistake any Western nation has made is believing they could somehow establish peace by getting involved in conflicts older than Rome. The West can certainly be blamed for being foolish, for meddling, for not really helping in any way... but not for starting the fight. The responsible parties are long dead, their remains crumbled to dust.

  • iPhone and iPad approved to handle classified NATO information

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  • Sort of.

    In 2017 China passed a law requiring Chinese user data to be held within the country: https://www.nytimes.com/2021/05/17/technology/apple-china-privacy-censorship.html

    Following that, Apple paid for a local data center which is managed by a Chinese company. Functionally this means that the PRC has access to all of the data stored there, because the government exerts direct control over Chinese companies, especially anything related to data collection and storage. Most likely, the PRC is able to access Apple users' iCloud data if it resides in the China-based data center.

    In response to a 2017 Chinese law, Apple agreed to move its Chinese customers’ data to China and onto computers owned and run by a Chinese state-owned company.

    Chinese government workers physically control and operate the data center. Apple agreed to store the digital keys that unlock its Chinese customers’ information in those data centers. And Apple abandoned the encryption technology it uses in other data centers after China wouldn’t allow it.

    Independent security experts and Apple engineers said Apple’s concessions would make it nearly impossible for the company to stop Chinese authorities from gaining access to the emails, photos, contacts, calendars and location data of Apple’s Chinese customers.

    This is not really different from what's been happening with other countries requiring their citizens' data to be held within their borders, and the UK has similarly forced Apple to withdraw the Advanced Data Protection for iCloud users: https://www.theverge.com/news/608145/apple-uk-icloud-encrypted-backups-spying-snoopers-charter

    [...] British security services would have access to the backups of any user worldwide, not just Brits, and Apple would not be permitted to alert users that their encryption was compromised.

  • US aims to bring in 4,500 white South Africans per month as refugees, document says

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  • is this the great replacement I keep hearing about?

  • 3DPrinting @lemmy.world
    NaibofTabr @infosec.pub

    Naomi Wu and the Silence That Speaks Volumes

    www.hackingbutlegal.com /p/naomi-wu-and-the-silence-that-speaks-volumes
  • 3D Printing @lemmy.ml
    NaibofTabr @infosec.pub

    Naomi Wu and the Silence That Speaks Volumes

    www.hackingbutlegal.com /p/naomi-wu-and-the-silence-that-speaks-volumes