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Cake day: January 23rd, 2024

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  • No. Just pointing out that a collision in LEO physically cannot create a situation where we’re locked in on Earth for more than a decade or two. The orbits will still have a perigee in LEO. They will still decay. The debris will still burn up eventually. Kessler syndrome is impossible in LEO. And in higher, larger volume orbits, it’s overblown, because we don’t even have enough mass there to create a notable debris field to lock ourselves in with.

    A Kessler cascade is one of those things that people read about and it sounds really scary and plausible and happening, like, in a week cause Starlink exists. And that’s where the thought process stops and the Chicken Little everyone has in their brain takes over.





  • They get to claim it because we let them. Every time an article comes out with “____ is a Nazi dogwhistle,” there’s a set of people who don’t want to be associated with Nazis (or insert relevant disliked group of choice) who will immediately drop whatever the thing is. This creates a cycle where something does eventually become a dogwhistle, because everyone who didn’t use it as such has stopped using it altogether.

    TL;DR: Fuck 'em. Don’t let those assholes control how you express yourself.




  • Bimfred@lemmy.worldtoMicroblog Memes@lemmy.worldThey do indeed
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    9 months ago

    Most of us lose the playfulness as the responsibilities of adult life pile up. Between work, family and everything else, there’s just no time. But that playfulness, doing something just for the fun of it, is armor. It helps ward off depression, relieves stress, it keeps our mental health up. We need hobbies, we need things in our life that are just fun and enjoyable, and we don’t need to feel guilty about taking some time to relax and unwind.












  • NATO not expanding eastward was never put to paper. No one ever officially signed off on it, nor was it ever an official decree. It was never anything more than words of appeasement. Russia “agreed to democracy on its doorstep” because they were going through a regime collapse and were a tad preoccupied with preventing the collapse from going further. Even if they had kicked up a storm about it, what were they gonna do? The breakaway nations weren’t going to just unpack their bags and stay with the abusive ex cause the ex said they can’t leave. Russia would’ve had to suppress them militarily once again, and they didn’t have the resources to do that.

    NATO expanding eastward was because the former Soviet bloc countries wanted it. Because if you’ve regained your independence (for some of them it wasn’t even the first time) from an aggressive neighboring nation, would you not wish to protect it with the means available to you? If Poland and the Baltics believed that, for the first time in centuries, Russia would stop doing Russia things, would they have sought to join? Because the only reason they’ve been spared Ukraine’s fate is that Russia was in no position to execute militarily when those countries were accepted into NATO. And look at us now, thirty some years later, Russia is doing Russia things.


  • Deeper IR, microwave and radio. Within a galaxy, redshift can be ignored. In another galaxy, the issue is moot, you don’t need to worry about them and they don’t need to worry about you.

    Our current scopes can pick up brown dwarfs with a surface temperature below freezing. An object the diameter of a planetary orbit, with the gravitational effect of a main sequence star and giving off just black body radiation is gonna stick out like a neon “Interesting stuff here!” sign the moment someone does a long wavelength survey of your general region.

    Even if you build a swarm instead of a solid shell, you’re still going to shift the star’s apparent spectrum towards IR, from the swarm radiating waste heat. A star whose mass, diameter and emission spectrum don’t match up with the math is inviting investigation, regardless of how you try to mask what you’ve been doing.