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General_Effort

@ General_Effort @lemmy.world

Posts
93
Comments
1020
Joined
3 yr. ago

  • Can no longer access my old instance (lemmings.world) because I'm from the UK. I made several communities there. Is there any way I can mod them again or do I move them to this instance?

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  • Sure. And that is why I think chat control will happen.

  • Just received an email from feddit.online saying they've geoblocked UK IPs due to the Online Safety Act

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  • Just received an email from feddit.online saying they've geoblocked UK IPs due to the Online Safety Act

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  • Ahh, nostalgia. Thank you.

  • Can no longer access my old instance (lemmings.world) because I'm from the UK. I made several communities there. Is there any way I can mod them again or do I move them to this instance?

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  • On EU age verification: https://digital-strategy.ec.europa.eu/en/policies/eu-age-verification

    As for chat control: With that attitude, probably.

    That attitude isn't the problem.

    Look around on Lemmy. People are saying that the EU needs to enforce its law against Big Tech. It must protect its citizens. It's about "our values". Blah blah blah...

    When that happens, you immediately get age verification. Germany had a social media service called StudiVZ. It was forced to segregate minors to a separate service. American social media not doing that is an example of them not following our laws and our values (not mine, not sure whose).

    These big corpos make big money by enabling pedos to groom children. We need to hold them accountable and force them to stop that! Does that make sense? Well, now you have to make Big Tech read private messages to search for suspicious activity. There's your chat control.

  • Strong Man 💪

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  • Hmm. I usually like her comics but this one has "I pray for you" energy.

  • I try to spice it up with some VB Macros but it's still ultimately just a spreadsheet.

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  • ikr? None of that stuff looks intimidating or totally useless. Not. Real. Math.

  • I try to spice it up with some VB Macros but it's still ultimately just a spreadsheet.

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  • There is no real math on that graph. It's just what anyone learns in a good education. Well, that and probability theory, combinatorics, and statistics.

    I'd really expect more from a math student.

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  • Some text-based games to play at work?

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  • C'mon. Look at her. Who wouldn't want to be sucked dry by her?

    Actually... Do they do that? Or is that just spiders?

    Anyway, I'm sure that their lovemaking involves giving head.

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  • I don't know much about mimicry, but I'm pretty sure the point of praying barbie's outfit is, that butterflies and bees also love her.

  • To survive the AI age, the web needs a new business model

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  • To survive the AI age, the web needs a new business model

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    1. Clickbait is one of the bigger problems on the net. I don't want to pay for more of it.
    2. I am much less opposed to being tracked than some people here. But the complete and unavoidable surveillance implied by such a scheme takes it a bit far.

    Actually, given Lemmy's usual knee-jerk reaction to tracking and commercialization, I can only assume that people aren't thinking through this proposal.

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  • Spilled the secret on the flight to Avignon. Today's Snowdens have it easier. They spill less unpleasant secrets, too.

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  • Ahh. But have you evolved your tailbone into a pilot light?

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  • "Help him, help him," Dobbs was sobbing. "Help him, help him."

    "Help who? Help who?" Yossarian called back. "Help who?"

    "The bombardier, the bombardier," Dobbs cried. "He doesn't answer. Help the bombardier, help the bombardier."

    "I'm the bombardier," Yossarian cried back at him. "I'm the bombardier. I'm all right. I'm all right."

    "Then help him, help him," Dobbs wept. "Help him, help him."

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  • Well, is it crunchy? Such a disappointment when they don't crunch after all.

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    Does the universe have a floor and ceiling in terms of 3D space? Is it expanding in all directions or limited directions?

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  • It's complicated...

    Some compare it to the surface of a balloon. Mark 2 points on the surface. When you blow it up, they will become further apart. A 2-dimensional creature on that surface would see their universe expanding.

    That 2D creature would not be able to visualize the surrounding 3D world anymore than we are able to imagine more than 3 dimensions. It might dream of taking a short-cut to the other side of the balloon by building a bridge through the center. That's the Sci-Fi fantasy of hyperspace travel.

    Mind that scientists don't believe that the universe is like a 3D balloon. A balloon has a closed surface. You can go round and get back to where you started. The universe is thought to be more like a flat rubber sheet being stretched where no one can see the edges.

    You might now wonder what kind of high-dimensional space the universe exists in. But even that may be a completely wrong way to think about it. This universe is all we know and have ever experienced. Worse. We evolved in it. We are absolutely constrained.

    Let's take a little detour through Einstein's relativity. Imagine a spaceship travelling at close to the speed of light. It flashes its headlights. The light moves on ahead of the ship at, of course, the speed of light.

    So here's the thing to break your mind:

    You look at this from the outside. You see the ship moving at close to the speed of light and the flash slowly gaining distance. The ship is almost as fast as the light, right?

    You look at this from the inside. You see the flash of light moving ahead at... the speed of light. You don't see it moving just a little faster than your own spaceship.

    Everyone, everywhere, always sees light moving at the speed of light. The person in the spaceship sees the flash moving away at the speed of light. The person outside, at relative rest, sees the distance between the flash and the ship increasing only slowly.

    How can this work? Well, time needs to pass slower on the spaceship relative to somewhere at relative rest. That's what time is relative means. There are more things that need to give way, like space/distances.

    Intuitively, we think of time and space as absolutes but it is not so. Light is an electromagnetic wave. So we might think that it behaves like a soundwave or an ocean wave. Not so. The speed of light is fundamental and time and space are built on it.

    Actually, the speed of light is the speed at which electromagnetic phenomena spread. We believe it is the general top speed of things happening in the universe. When you move a magnet, then the magnetic field around it moves. But this movement spreads only at the speed of light. The gravitational field around it also moves, but also only with a delay given by the speed of light.

    Let's go back closer to home. Everything consists of atoms. Atoms have a positively charged nucleus and a negatively charged shell of electrons. What keeps the nucleus and shell together is electromagnetism. The reason you can't walk through walls is that equal charges repel. Electromagnetism is how our reality is solid.

    We intuitively think of everything as space with stuff in it. But that is a playing field created by electromagnetism and a bunch of other things.

    This view obviously starts breaking down when we go away from what we are used to. At large scales and high speeds, you have to think in terms of relativity. At very small scales, it gets quantum. Stuff only has a location, speed, or other properties in interaction with other stuff.

    Quantum theory and relativity contradict each other, but also are completely accurate as far as anyone can measure. The conditions where they'd contradict each other exist around a black hole or maybe at the beginning of the universe.

    Let's get back to the question...

    You ever use a spray can for a while and notice that it gets cold? That's how a fridge works. And also our universe.

    When everything was closer together, the universe was hotter. About 13.8 billion years ago, it was white-hot glowing plasma. Plasma means that the atoms bump into each other so hard that they knock off the electron shells of each other. When there was enough room/the universe had cooled enough, this stopped.

    The light of that is what we now see as the cosmic microwave background radiation (CMBR). When that light started out, all those billions of years ago, it was quite close to us. But the universe expanded and so it had to travel a long way, eventually. The expansion of the universe also caused the wavelength to become larger. The wavelength expanded like any other length. So instead of light (nanometer wavelength) we now have microwave radiation (micrometer wavelength).

    When we look out from earth, we don't just see into the distance. We see into the past. That glowing plasma is opaque to light, so that's as far back as we can see. It's the edge of the observable universe, but it's not a barrier to which you could travel. It's in the past.

    We assume, and it appears to be true, that the laws of nature and thus the speed of light, are the same everywhere. That means that the edge of the observable universe is a sphere around us.

    As far as we can tell, every point in space expands equally. The CMBR comes uniformly from everywhere. We don't know what this expansion means or why it happens. We only know that we can explain the observable universe with the Big Bang Theory. Maybe it's just some fudge we are stuck with, because we can only think in terms of time and space.

  • Finally a solution to the Königsberg Bridge problem.

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  • This must be the true reason the whole city got razed.

    Allegedly, the Russians wanted to negotiate about Kaliningrad in 1990 but Germany was more horrified than interested. Straightforward decision at the time. No one wanted a reprieve of the whole Polish Corridor thing, especially without even Germans living there. Rather a mistake in hindsight.