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Sasha [They/Them]

@ Sasha @lemmy.blahaj.zone

Posts
9
Comments
359
Joined
2 yr. ago

  • If time travel were to exist, which theory would you subscribe to?

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  • From a quantum perspective the Deutschian and similar models are honestly pretty compelling. They essentially require matching up the past and present in a consistent way that can remove paradoxes.

    These make the most sense because it's entirely possible to write down spacetimes that contain "closed time like curves" (CTCs) ie. paths connecting past and present and you can then just let physics play out on these models (or more commonly using black box quantum circuits). The only consistent way to do it is to make sure the past and future side of such curves agree. It's not my area at all, just something colleagues of mine did, but from memory there are nice approaches using the path integral formalism that work really nicely in these scenarios.

    All that's to say that I don't think time travel leads to anything changing, the past will have always agreed with whatever time travel happens in the future.

    Having worked very briefly with the spacetimes that produce CTCs, I don't expect we'll be able to time travel because they usually violate the weak energy condition.

    https://en.m.wikipedia.org/wiki/Quantum_mechanics_of_time_travel

  • more rules analysis

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  • Leaving the instance or blocking someone isn't transphobic, but not respecting their pronouns is. It's that simple.

  • What is your current earworm?

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  • Honestly most of this album, but Bicycle Spokes in particular.

    Great movie btw

  • NSFW

    Better(ule)

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  • Just to be a contrarian: BRING BACK THE APES

  • People who have transitioned...

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  • I'd been thinking about this for a bit today, I used to own it but I see it pretty differently now.

    I kinda realised that I'd basically done all my growing up over the last 4 or so years. That wasn't my past, I was in someone else's life and I didn't know how to play that character. I didn't grow or change or do anything interesting, I just coasted to some destination I was meant to reach to finish a story I wasn't meant to be part of.

    Now, I'm living my life instead, making my own decisions, liking the person I've become and telling my own story. The only downside is that I started with 20 years of baggage that I've gotta slowly get rid of.

  • Please help resolve a disagreement in our home

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  • Even the community kitchen I use has one of these...

  • Do you think about the possibilities of the world in terms of "timelines"? [aka: Many-Worlds Theory, Yes or No?]

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  • Does it make sense? Yes Do I believe it? Yesn't

    It's not testable so it just doesn't matter to me and I don't really care to make a choice about it being physical or not, I still experience the universe the same way regardless of how you interpret QM.

  • What is the correct cereal/milk ratio?

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  • Sometimes I just eat the cereal without milk

  • Rulejitzu

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  • Does Christmas mean anything to you?

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  • It doesn't.

    I'm really against the expected gift giving and the commercialisation of it all. I don't really want things so I'm not really keen on receiving gifts either, I honestly struggle to get excited about it.

    I'm not keen on spending Christmas with my family because it's basically "back in the closet" day, and it makes me want to die. If it's Christmas without the grandparents it's a lot better. That said I've gotten out of most of it this year, just a lunch and then back home to Naarm to put on a community dinner which I am legitimately looking forward to.

    I'm not religious either so it also literally has no meaning to me.

  • Toleruleance

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  • My point is that weebs are considered more acceptable than furries in almost every space, it's not literal.

  • Toleruleance

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  • Everyone has a problem with furries because "it's sexual" and the usual rebuttal is that not all of it is about sex, but I think this misses the point.

    Basically every adult fandom has a sexual element, weebs are the fucking same and no one goes around calling all anime fans perverts. Sexuality is a natural human thing and they have a goddamn right to explore that through their medium. Get to know a furry, they're just normal fucking people (pun not intended, I'm just Australian).

    Beastiality is not a furry thing and should not be lumped into it. Fuck zoophiles.

    There's also a lot of people who will use the abstraction available in furry art/fandom to explore their identity and sexuality, it's honestly a good space for helping people grow and understand themselves. I've known plenty of trans people who've only been able to find and accept their being trans through their fursonas. They're valid as hell and I'll defend them until I die.

  • You live in a dystopian future where paper and writing utensils are banned, and the world government has outlawed all dissent. How would you secretly communicate with your fellow revolutionaries?

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  • You can make pencils with charcoal, paper bark trees are common here.

    Also pirate radio, hard but not impossible to conceal its location if you've got a good portable system.

  • Why would there ever be anything?

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  • Yeah that's what I was getting at, all we can do is guess. It's pretty easy to realise it's impossible to answer scientifically, anything that could have any impact on our universe must necessarily be part of it and so cannot tell us anything about what came before.

  • Which water filtration pitcher do you use?

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  • My water doesn't really need filtering, but I dated someone who didn't want to take the risk (and for a really good reason) we just used a brita branded one.

  • We are so back

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  • Don't worry, that's on my to-do list

  • We are so back

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  • We don't really do guns where I live

  • Anne Frank rule

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  • Also part of the BDS for giving free meals to Israeli soldiers

  • Why would there ever be anything?

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  • Ex physicist here: Fucking no clue, but here's two neat ideas

    1. Because there has always been things. Basically it's entirely possible the universe just kind loops around given enough time, there are a few really interesting ways to do this but the classic one is where the big bang reverses and there's a bug crunch before a new big bang. That's not very likely based on our observations, but there are other more mathematically complex ways to have a cyclical universe, and they don't necessarily require having a defined beginning.
    2. Because nothingness is unstable. Basically, if there's a concept of nothingness, no energy, particles time or space, but it's possible for little universes to occasionally exist and disappear really quickly, then it's possible that our universe suddenly popped into existence, got really fucking big before it could disappear again and then got stuck existing. This is based on the highly advanced area of physics called making a wild fucking guess.

    I'd say most likely that we'll have to be satisfied with that not being a question that can be answered. Much in the same way that we can't answer the question of why the laws of physics look the way they do, we can just describe what they currently are.