• 20 Posts
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Joined 1 year ago
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Cake day: August 28th, 2023

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  • Very good. The problem is that singularities are quantum objects. Quantum physics works nothing like classical physics.

    For example, in the case of perpetually falling singularities, would they just quantum tunnel into each other? Or would singularities even exist? According to general relativity, singularities are a sphere that never stops being compressed due to its own gravity. What happens when this sphere hits a diameter smaller than Plank’s length? Does the universe take a screenshot? The point is, we have absolutely no clue about what’s happening here.

    To understand the above, we would first need to understand how gravity works at the quantum level, which we don’t. Why? Gravity is incredibly weak. Studying it is thus, very hard.


  • Read this

    If general relativity is exactly correct (in that there lies a point like singularity at the center of a black hole), then the Roche limit of black holes would be zero. Why would it be zero? Because the singularity isn’t a solid sphere. It’s a point of infinite density with a radius of 0. Basically, what this means is that the concept of a Roche limit ceases to exist here.

    However, we know that general relativity doesn’t correctly describe reality at the quantum scale. Classical physics (which general relativity is based upon) contradicts quantum physics in many ways. Singularities work at the quantum scale. Singularities of black holes also only interact through gravity. Because gravity is incredibly weak, we have not been able to experiment with it at the quantum scale. So we don’t know how gravity works at the quantum scale yet.

    Therefore, we don’t even know if singularities exist inside black holes. Basically, we have no clue about what happens inside black holes, how general relativity and gravity works at small scales and what exactly happens during a black hole merger.

    We could answer the above questions after we understand quantum gravity.






  • UraniumBlazer@lemm.eetoTechnology@lemmy.world*Permanently Deleted*
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    1 month ago

    Problem: Higher childhood depression rates linked to social media usage, social media caused disruption in education (like usage in schools), privacy violation of minors, etc.

    An enforceable, common sense solution: Very strict privacy protection laws, that would end up protecting everybody, including minors. Better, kid friendly urban infrastructure like dedicated bike paths protected from car traffic, better pedestrian areas, parks and so on. Kids will get outside their house if there is a kid friendly outside. A greener, more human friendly outside where you can socialize with other humans would always be preferred over doom scrolling online. For the disruption in education issue, it is very education system dependent.

    What solution these people came up with: Make it illegal for individuals under the age of 16 to create social media accounts. How do they enforce this? No idea. Does this solve any of the above problems? No. Is this performative? Yes.

    Speaking from personal experience, social media was one of the most liberating tools for me as a kid. I lived in a shitty, conservative country and was gay. Social media told me that I wasn’t disgusting. I was always more of a lurker than a poster, so I thankfully didn’t really experience being contacted by groomers and so on. However, many of my friends who posted their images and stuff almost always got pedos in their DMs, so that’s a very real issue.

    I could ask my silly little questions related to astrophysics on Reddit and get really good answers. Noone around me irl was ever interested/able to talk about stuff like this. I could explore different political ideologies, get into related servers on Discord and learn more about this. None of this was possible without social media.

    Banning social media outright is such a boomer move lol. Doing so isn’t going to solve any real problems associated with childhood social media usage. It’s just going to give the jackass parents complaining about this a false sense of security, when the kids still end up suffering.





    1. You are assuming that the current medical scene won’t improve. It is very likely that we’ll eliminate the “old person lying in bed, dying” visual altogether due advancements in the medical field (especially accelerated further by development in AI)
    2. The “human touch” is not impossible to replicate for machines. You aren’t seeing machines capable of that right now, because the field of personal care robots are in their absolute infancy. “The human touch” at the end of the day, is just warm, soft skin paired with a caring voice. We have already replicated the caring voice.
    3. Elder care robots won’t be cold, metal bodies going “Boop boop, shit in bed defected, Boop boop engaging cleanup procedure…”. They would be really kind voices, soft hands with an experience of more than a thousand years of handling thousands of patients. They would never become impatient, they would never feel bad or disgusted.

    Of course, advancements in this tech won’t stop humans from caring for the elderly. You can still care for ur grandpa. However, ur grandpa won’t die if u don’t.

    Here’s the best case scenario - you can be with ur grandpa, chat, play video games, do fun stuff. When it’s time to change the diaper, a professional robot trained for this very purpose does the job.




  • Exactly. There’s a very clear path to monetisation for the bigger tech companies (ofc, not the random startup that screams “AI quantum computing blockchain reeeee”).

    Lemmy is just incredibly biased against AI, as it could replace a shit ton of jobs and lead to a crazy amount of wealth inequality. However, people need to remember that the problem isn’t the tech- it’s the system that the tech is being innovated in.

    Denying AI is just going to make this issue a lot worse. We need to work to make AI be beneficial for all of us instead of the capitalists. But somehow leftist talk surrounding AI has just been about hating on it/ denying it, instead of preparing for a world in which it would be critical infrastructure very soon.