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Cake day: July 5th, 2023

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  • And while information itself can be a “product” or be provided as a service, in most cases, it’s not.

    Sure, but my point is that the same is true of physical machines. People don’t want working machines for the sake of working machines. They want working machines to actually do something else, to output a “product” of that machine’s operation.

    And viewed in that way, information services are as much a standalone “product” as maintenance/repair services. Information services account for trillions of dollars of economic activity for a reason.


  • The mechanic is usually the actual worker - you run a repair shop

    But what is being repaired? A machine of some kind? And the machine is operated in pursuit of another actual productive activity, right?

    Machines are just about the application of mechanical force in some way, and that in itself isn’t an end goal. Instead, we want that machine to move stuff from one place to another, to separate things that are apart or smush/mix separate things together, to apply heat or cooling to stuff, to transmit radiation or light in particular patterns.

    Everything in the economy is just enabling other parts of the economy (including the informal parts of the economy). Physical movement of objects isn’t special, compared to anything else: kicking a ball on TV, singing into a microphone, authorizing a wire transfer, entering a purchase order, answering a phone, etc.

    I’m not seeing a real distinction between an IT consulting business and a heavy equipment maintenance/repair business. The business itself is there to provide services to other businesses.


  • NASA funded SpaceX based on hitting milestones on their COTS program. Those were just as available to Boeing and Blue Origin, but they had less success meeting those milestones and making a profit under fixed price contracts (as opposed to the traditional cost plus contracts). It’s still NASA-defined standards, only with an offloading of the risk and uncertainty onto the private contractors, which was great for SpaceX and terrible for Boeing.

    But ultimately it’s still just contracting.


  • NASA has always been dependent on commercial for profit entities as contractors. The Space Shuttle was developed by Rockwell International (which was later acquired by Boeing). The Apollo Program relied heavily on Boeing, Douglas Aircraft (which later merged into McDonnell Douglas, and then merged with Boeing), and North American Aviation (which later became Rockwell and was acquired by Boeing), and IBM. Lots of cutting edge stuff in that era happened from government contracts throwing money at private corporations.

    That’s the whole military industrial complex Eisenhower was talking about.

    The only difference with today is that space companies have other customers to choose from, not just NASA (or the Air Force/Space Force).




  • Physics don’t change fundamentally between 6 meters and 120 meters

    Yes it does. Mass to strength ratio of structural components changes with scale. So does the thrust to mass ratio of a rocket and its fuel. So does heat dissipation (affected by ratio of surface area to mass).

    And I don’t know shit about fluid dynamics, but I’m skeptical that things scale cleanly, either.

    Scaling upward will encounter challenges not apparent at small sizes. That goes for everything from engineering bridges to buildings to cars to boats to aircraft to spacecraft.





  • It’s a chain of trust, you have to trust the whole chain.

    Including the entire other side of the conversation. E2EE in a group chat still exposes the group chat if one participant shares their own key (or the chats themselves) with something insecure. Obviously any participant can copy and paste things, archive/log/screenshot things. It can all be automated, too.

    Take, for example, iMessage. We have pretty good confidence that Apple can’t read your chats when you have configured it correctly: E2EE, no iCloud archiving of the chats, no backups of the keys. But do you trust that the other side of the conversation has done the exact same thing correctly?

    Or take for example the stupid case of senior American military officials accidentally adding a prominent journalist to their war plans signal chat. It’s not a technical failure of signal’s encryption, but a mistake by one of the participants inviting the wrong person, who then published the chat to the world.





  • They’re actually only about 48% accurate, meaning that they’re more often wrong than right and you are 2% more likely to guess the right answer.

    Wait what are the Bayesian priors? Are we assuming that the baseline is 50% true and 50% false? And what is its error rate in false positives versus false negatives? Because all these matter for determining after the fact how much probability to assign the test being right or wrong.

    Put another way, imagine a stupid device that just says “true” literally every time. If I hook that device up to a person who never lies, then that machine is 100% accurate! If I hook that same device to a person who only lies 5% of the time, it’s still 95% accurate.

    So what do you mean by 48% accurate? That’s not enough information to do anything with.


  • Yeah, from what I remember of what Web 2.0 was, it was services that could be interactive in the browser window, without loading a whole new page each time the user submitted information through HTTP POST. “Ajax” was a hot buzzword among web/tech companies.

    Flickr was mind blowing in that you could edit photo captions and titles without navigating away from the page. Gmail could refresh the inbox without reloading the sidebar. Google maps was impressive in that you could drag the map around and zoom within the window, while it fetched the graphical elements necessary on demand.

    Or maybe web 2.0 included the ability to implement states in the stateless HTTP protocol. You could log into a page and it would only show you the new/unread items for you personally, rather than showing literally every visitor the exact same thing for the exact same URL.

    Social networking became possible with Web 2.0 technologies, but I wouldn’t define Web 2.0 as inherently social. User interactions with a service was the core, and whether the service connected user to user through that service’s design was kinda beside the point.