Basically a deer with a human face. Despite probably being some sort of magical nature spirit, his interests are primarily in technology and politics and science fiction.

Spent many years on Reddit and then some time on kbin.social.

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Joined 4 months ago
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Cake day: March 3rd, 2024

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  • I once got permabanned from a politics subreddit (I think it was /r/canadapolitics) that had a “downvoting is not permitted” rule, because there was a guy getting downvotes and I offered him an explanation for why I thought he was getting them. That counted as evidence that I had downvoted him, I guess.

    My response: I sent one message to the mods that was essentially “really?” And then when there was no response I unsubbed from that subreddit and moved on. I see no point in participating in subreddits with ridiculous rules and ridiculous enforcement.

    Granted, unsubbing from politics subreddits is generally a good idea even when not banned. But eh.

    The only other subreddit I’m banned in is /r/artisthate, which I never visited in the first place. Apparently they scan other subreddits for signs of users who don’t hate artificial intelligence enough and preemptively ban them. That was kind of hilarious.

    Anyway, I guess my advice is don’t get too deeply “invested” in a community that can be so easily and arbitrarily taken away from you in the first place. And also manage your passwords better.




  • It’s not specifically oxygen that’s linked to life, it’s chemical disequilibrium. Oxygen is highly reactive, there are lots of minerals that will bind it up and there aren’t any natural geological processes that unbind it again in significant quantities. If you put an oxygen atmosphere on a lifeless planet then pretty soon all of the oxygen will be bound up in other compounds - carbon dioxide, silicon oxides, ferric oxides, and so forth. There has to be some process that’s constantly producing oxygen in vast quantities to keep Earth’s atmosphere in the state that it’s in.

    There are other chemicals that could also be taken as signs of life, depending on the conditions on a planet. Methane, for example, also has a short lifespan under Earthlike conditions. You may have seen headlines a little while back about the detection of “life signs” on Venus, in that case it was phosphine gas (PH3) that they thought they’d spotted (turns out it may have been a false alarm). These sorts of gasses can be detected in planetary atmospheres at interstellar distances, especially in the case of something like Earth where it’s quite flagrant.

    Even if these are sometimes false alarms, in a “Dark Forest” scenario it’d still be worth sending a probe to go and kill whatever planets exhibit signs like that. It’s a lot cheaper and quieter than trying to fight an actual civilization. That’s why I can’t see why we wouldn’t have already been wiped out aeons ago in this scenario.


  • But that’s not actually true. We’ve been “broadcasting” the fact that there’s life on Earth in the form of the spectrographic signature of an oxygen-rich atmosphere, which is a clear sign that photosynthesis is going on. There’s no geological process that could maintain that much oxygen in the atmosphere. The Great Oxidation Event is when that started.

    We have the technology to detect this kind of thing already, at our current level. Any civilization that could reach out and attack another solar system would be able to very easily see it.





  • Well, “relatively cheaply” is a hard standard to nail down. I would say “no”, though. Antimatter is very expensive to manufacture and store and you’re going to need a lot of it. All of the energy that comes out of an RKV hitting its target has to be put into it in the first place, probably several times over given the inefficiencies likely inherent in the process.