• 1 Post
  • 173 Comments
Joined 1 year ago
cake
Cake day: June 11th, 2023

help-circle












  • orion’s arm project

    has a basic, but easily understood explanation. basically, if both relativity and causality hold, true FTL travel is impossible, no matter how it is you acheive it. (in the OA universe, wormholes are accepted because the ship itself is not actually going FTL, and therefore not breaking causality)

    my understanding of why an alcuibierre drive wouldn’t work is that space time itself has some energy(and therefore some mass,) all you’re really doing in that system is replacing the reaction mass from being matter to being… uh… space. But my understanding is that of a highly unscientific mind trying to understand…uh… sciencey shit.

    In any case, some things to point out? the fastest man-made object is currently the Parker Solar Probe which is planned to reach a top speed of about 190 km/s at it’s fastest. (it’s basically falling into the sun, using Venus to loop around and gain speed.) That’s about .0006 c. At that speed, it would take about seven thousand years to reach proxima centauri (the nearest star at 4.2 light years.)

    the energy necessary to accelerate even a few kilograms to a speed that could arrive at earth from another star (any other star), in a reasonable time frame is… appropriately described as astronomical. Any species technologically advanced to do so would be advanced enough to recognize that the only thing that’s really unique about our system is… well, us, and all the other life that evolved to be here. So there goes economic incentive. Cultural curiosity? sure maybe. but they’d be technologically advanced enough to understand that we nuked the shit out of our selves, and that we’re fucking psychotic. Which removes that.

    Religious mandate? Oh. Great. Space-Mormons. (of course there’s space-mormons,) This is dubious as then, said proselytizers would definitely defy the world government to preach. (kind of like that idiot that got dead trying to proselytize the Sentinelese people.) Religious mandate to wipe us out of existence? we wouldn’t be having this conversation.

    Curiosity? is tempered by the whole ‘oh, they nuked themselves,’ thing. Any technology used to get here could be reverse engineered and used to get there- and we’re psychotic enough to nuke ourselves… there’s absolutely no telling how we’d actually respond to aliens. probably not how Star Trek portrays our First Contact… (well. except in the mirror universe. That might be more accurate.)

    c) In the mathematically improbable situation where intelligent life did manage to get here, why would they be tiptoeing around in the background for seemingly 80 or so years when they are clearly technologically superior to us and nothing humanity has available to itself could remotely stop them? It seems silly to imagine these incredible lifeforms getting here and then having an “oops we crash landed” event.

    alien abduction stories replaced vampiric…er… visitation?.. stories. it’s just pop culture intruding onto people’s imaginations.
    But yeah. Any society capable of getting here has no need to tiptoe around- they can do what they want. The shinnanigans are… more likely us either misunderstanding things (ie military prototypes, whatever.) or straight up fraud (because, you know, that’s happened.)


  • Hehe, that might actually have been more of the Uncle’s influence.

    He’s the one that started me on the science fiction addiction- when I got into his (then-complete) collection on VHS. I found them and started. Binge watching them. Got to Trouble With tribbles when I was found out- and then it was my Uncle who was like “oh! That’s my favorite. Rewind it while I go make popcorn!”



  • my first beowolf cluster, I built because I wanted to improve my pentium 486’s chances at doing well in some random FOSS benchmark (PiMark? it calculated pi… and you could ‘donate’ cpu runtime to help calculate more digits of pi.) It was cobbled out of my dad’s spare part’s rack.
    Should have seen my dad’s face when he realied why i built the beowolf… “You mean… you did this. FOR PI??”(“Okay, that’s actually cool.”)


  • First video game I remember playing? Short Order on NES (with the pad.) That was followed shortly by monopoly- also NES.

    First game I beat? was dad’s copy of Zelda (NES,) Which… I wasn’t supposed to be playing. I got caught when I saw my dad was struggling with the water temple.
    “Dad…dad DAD. you go here. get that. Do this. And then do this that and this.”
    “Oh. Cool. wait. how do you know this?”
    “Oh i beat it last week.”
    <awkward pause>
    “you better pay attention. that’s the boss.”
    “We’re not telling mom about this.”


  • It’s really not that hard.

    Edit: To clarify, any species advanced enough to come here from another star is going to be advanced enough to understand basic chemistry- chemistry, that we’ve been using for for more than 2000 years (at the very least.)

    Such a hypothetical species would almost certainly also have the capability of doing spectral analysis to detect elemental composition in our atmosphere (JWST can do this,) and detect the radioactive fallout from our nuking ourselves- multiple times.

    They would almost certainly be extremely careful in coming here. To be clear, the energy contained in a ship capable of reaching earth in any meaningful time frame, would be capable of wiping life out on Earth- far more powerful than any nuke ever detonated here. More importantly to them, such a space craft could conceivably be reverse engineered with enough capacity to attack them.

    For comparison, the fastest moving space craft made by humans- the Parker solar probe- is traveling at 150 kilometers per second- the probe was designed to fall very close to the sun…it’ll be going about 190 km/s- it’s orbit was crafted to fly between the sun and Venus. It’s in its sixteenth of 24 planned passes.

    190 km/s is about .04% the speed of light- or .0004 c. At those speeds it’ll take more than 10 thousand years to reach the nearest star (proxima centauri at 4.2 light years.)

    And that’s assuming we don’t care about slowing down.

    Any species to get here is going to be technologically advanced enough there’s no economic reason to come here. That leaves curiosity- specifically us. And we’re fucking psychotic enough to nuke ourselves.

    Do i believe aliens exist? It’s probable.
    Do i believe they come here? Not likely.