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Cake day: June 13th, 2023

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  • This isn’t great, but it’s what I ended up resorting to for my mom who refused to use any service, browser setting, or saved file:

    • Make a “master” password with upper-case characters and digits (e.g., M45T3R). Memorize it or write it down.

    • Interleave the characters with those of the domain the password is for (e.g., for google.com: gMo4o5gTl3eR). She can type the master password first, then put the cursor at the start and type each letter of the domain name hitting the right arrow after each letter.

    As long as she remembered the master password, she could reconstruct the others on the fly. A human could still look at the result and figure out the pattern, but at least it protected her from automated tools.











  • Let’s suppose a time travel event occurs in which an agent with free will travels to their own causal past, and let’s suppose this creates a parallel timeline which can differ from the first (leading to a new version of the agent which creates a third timeline, and so on).

    We can consider this time-travel event as a function in which one timeline maps to a successor timeline — or in general, the event is an iterative map from the space of possible timelines to itself. If this map meets a few general criteria, we can apply the fixed point theorem and conclude that, after enough iterations, the process will converge to some fixed point that maps to itself (that is, the agent causes the past of their own timeline, even though they have free will). This timeline maps to itself—but it is also mapped to by an infinite succession of timelines in which the agent is free to alter their successor timeline, converging on one in which their choices cause no further alteration.

    At that point, we can dispense with the assumption that time travel creates parallel timelines, and assume instead that the fixed-point, self-causing timeline is the only real one.



  • I spent eight years as an undergrad in the 90s taking courses in everything, because I was addicted to interdisciplinary learning independent of any career goal. Then the dot-com boom convinced me that online learning could replace universities, so I picked a major that would benefit from having access to a university library (History), got a baccalaureate, and ended my formal education there.

    It took a decade or so before the online availability of open-access papers caught up with my expectations, and I realize in retrospect that I underrated the value of postgraduate study—but given the expense and the necessity of specializing it would have entailed, I don’t regret not pursuing higher degrees.



  • AbouBenAdhem@lemmy.worldtoMemes@lemmy.mlWerk werk
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    10 days ago

    My city is full of shops and restaurants run by people who worked corporate jobs for decades while saving up to open their dream shop. The commercial landlords have realized this, and raised rents to the point where profitable businesses are a financial impossibility—they just aim to drain their tenants’ life savings as quickly as possible while they line up the next hopefuls. The city is full of amazing shops and restaurants, but they have a turnover time in months.

    Goat herding, on the other hand, is much less susceptible to commercial rent inflation.