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Cake day: June 9th, 2023

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  • Yeah, I was going to say that we know that Ea-nasir’s copper was shitty.

    Obviously not everything from 1750 BC survived, but we do know that certain mediums are more likely to stand the test of time than others. Something physical with the writing carved in? That will probably last. Something with pigment on vellum, that won’t be quite as good, but you can store a lot more information per kg. Something involving bits? That won’t last even a quarter century. Something involving bits stored using magnetism and retrieved using mechanical motion? Good luck keeping that for even a decade.

    But, the thing we’ve shown will 100% stand the test of time is keeping the information flowing, though at the cost of some degradation. In the past, this was one generation telling stories to the next. When that happens, not only does the information get passed on, the language used is subtly updated in time with the evolution of the language. You don’t need to learn Akkadian cuneiform to read it, it’s available in whatever the modern language is. Similarly, if digital files keep getting passed around, it doesn’t matter if the original came on a floppy disk, and floppy disk readers are now gone. The file exists, stored in whatever medium is current. But, you get degradation with this process too. Music might be turned into mp3s with some data getting lost. Photos might be resized, cropped, recompressed, etc.

    If I wanted something to be preserved exactly as-is for centuries, I’d carve it into a non-precious metal (so nobody melted it down). If I wanted something to be easily accessible for centuries, I’d try to share it as widely as possible to keep it “in motion” and in a format that was constantly up to date.







  • merc@sh.itjust.workstoTechnology@lemmy.worldSome basic info about USB
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    10 days ago

    Yeah, Display Port is old, but I’ve never seen that P and D symbol before, or at least never noticed it. And, even if it existed before Display Port over USB, you’d think that that potential confusion was a good opportunity to come up with a new logo for something that would be put next to a USB port.

    It’s almost as if having all these different features would be easier to differentiate if they had different physical shapes.

    I think the goal was always that you’d only ever need one type of port and one type of cable and that that port and cable could do anything. Unfortunately, because there are so many revisions and so many features are optional, you’ve now got a situation where the port is the right shape, the cable fits into the port, but you can’t get the thing to work without reading the fine print, or without decoding obscure logos.




  • Also, “piracy” or “copyright infringement” isn’t theft in any sense.

    A key element of theft is that you deprive the rightful owner of something. You now have it and they no longer do. What makes it wrong is that the person who should have it no longer does. It’s not that you have it. That’s why the punishment for “mischief” where someone completely destroys something belonging to someone else is similar to the punishment for the theft of that same object.

    Copyright infringement is breaking the rule that the state imposed giving someone the exclusive right to control the copying of something. You’re not depriving anyone of anything tangible when you infringe a copyright. They still have the original, they still have any copies they made, any copies they gave out or sold are still where they were. The only thing you’re doing is violating the rule that gave them exclusive control. If you’re depriving someone of anything, it’s depriving them of the opportunity they might have had to make money from selling a copy.

    If anything, copyright infringement is more similar to trespassing than to theft. Just like copyright infringement, trespassing involves not allowing someone to control who accesses their property. If you sneak onto someone’s campground property and have a bonfire party, the person loses the opportunity to rent out the campground for the bonfire, and any money they might have received for doing that. But, if you sneak in and sneak out and leave no trace, you could argue that nobody is harmed.


  • Assuming nobody else is immune and has the power to restart it. If someone else did have the power to restart time, I think the thought process would go:

    Bob: “Aha! I have the power to stop time with the snap of my fingers”

    [starts to snap]

    Bob: “Oh wait! What if I’m not immune!”

    [time is frozen]

    Some dude elsewhere: “Weird, time stopped again! I guess I’ll take advantage and rob this bank.” Then, later “Ok, got all the money, now I’ll just crack my knuckles to restart time.”

    [time is unfrozen]

    Bob: “Wait… I just snapped my fingers and time didn’t stop! I guess I don’t have that power at all!”



  • merc@sh.itjust.workstoScience Memes@mander.xyzVoyager 1
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    5 months ago

    To me, the physics of the situation makes this all the more impressive.

    Voyager has a 23 watt radio. That’s about 10x as much power as a cell phone’s radio, but it’s still small. Voyager is so far away it takes 22.5 hours for the signal to get to earth traveling at light speed. This is a radio beam, not a laser, but it’s extraordinarily tight beam for a radio, with the focus only 0.5 degrees wide, but that means it’s still 1000x wider than the earth when it arrives. It’s being received by some of the biggest antennas ever made, but they’re still only 70m wide, so each one only receives a tiny fraction of the power the power transmitted. So, they’re decoding a signal that’s 10^-18 watts.

    So, not only are you debugging a system created half a century ago without being able to see or touch it, you’re doing it with a 2-day delay to see what your changes do, and using the most absurdly powerful radios just to send signals.

    The computer side of things is also even more impressive than this makes it sound. A memory chip failed. On Earth, you’d probably try to figure that out by physically looking at the hardware, and then probing it with a multimeter or an oscilloscope or something. They couldn’t do that. They had to debug it by watching the program as it ran and as it tried to use this faulty memory chip and failed in interesting ways. They could interact with it, but only on a 2 day delay. They also had to know that any wrong move and the little control they had over it could fail and it would be fully dead.

    So, a malfunctioning computer that you can only interact with at 40 bits per second, that takes 2 full days between every send and receive, that has flaky hardware and was designed more than 50 years ago.




  • Git is a DVCS. GitHub is a place where DVCS repositories are hosted. There are many other places where DVCS repositories can be hosted, but GitHub is the most famous one… Porn is a type of content. PornHub is a place where porn is hosted. There are many other places where porn can be hosted, but PornHub is the most famous one. It’s a pretty good analogy.