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Cake day: June 6th, 2024

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  • It’s not that simple. It’s not just a “this is or isn’t AI” boolean in the metadata. Hash the image, then sign the hash with digital signature key. The signature will be invalid if the image has been tampered with, and you can’t make a new signature without the signing key.

    Once the image is signed, you can’t tamper with it and get away with it.

    The vulnerability is, how do you ensure an image isn’t faked before it gets to the signature part? On some level, I think this is a fundamentally unsolvable problem. But there may be ways to make it practically impossible to fake, at least for the average user without highly advanced resources.



  • WolfLink@sh.itjust.workstoScience Memes@mander.xyzMornings
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    7 hours ago

    Updating my computers from Ubuntu 22.04 to 24.04 was a whole day process. It doesn’t help that the upgrade tool requires you to press enter every so often.

    (Yeah yeah I should try other distros. I’ll play with other distros when I’m not spending my time as pictured in the meme.)

    (To be clear this is on a couple computer I personally own. The ones the lab owns are on Ubuntu 20.04 if I’m lucky…)















  • A vector space is when you can:

    • add two Things
    • multiply a Thing by any real number

    And get another Thing that’s the same Kind of Thing.

    By Thing I mean Vector and by Kind of Thing I mean element of the same Vector Space.

    Examples of vector spaces:

    • real numbers
    • complex numbers
    • sets of N numbers (what most people think of when they hear “vector”)
    • matrices
    • polynomials
    • functions
    • quantum states of a given system
    • quantities of apples sold, classified by type of apple

    Examples of Not Vector Spaces:

    • integers
    • negative numbers
    • nonzero numbers
    • unitary matrices
    • apples

    Yeah a few of these come with asterisks I’m happy to answer questions but don’t want to argue with pedants.


  • Almost everything about it needs to be optional because sometimes USB is used to charge some cheap battery powered thing and sometimes it’s used to make a backup of a harddrive and sometimes it’s charging my laptop with enough power for it to be rendering video but still have a net charge increase to the battery while also providing Ethernet, video output, and keyboard/mouse input over the same one port.