• Sneezycat@sopuli.xyz
      link
      fedilink
      English
      arrow-up
      24
      ·
      7 months ago

      Let’s do the math…

      You can donate three times a year to the red cross (once every 112 days). According to some page, you donate around 10% of your blood volume each time.

      That means, for a volume equivalent of 300 people, you’d need to donate 3000 times, which would take around 1000 years.

      The vampire is going to need more people, or to keep a person alive 1000 years with vampire magic.

      • kernelle@lemmy.world
        link
        fedilink
        English
        arrow-up
        10
        ·
        7 months ago

        When you’re harvesting the blood iron of your enemies you don’t have time for ethics. A controlled study managed 4 weeks within ethical boundaries, maybe we can cut that in half unethically. So 14 days, 3000 . 14 = 115 years. So when you torture two people, you could manage to do 58 years. Better start early!

      • ColeSloth@discuss.tchncs.de
        link
        fedilink
        English
        arrow-up
        4
        arrow-down
        1
        ·
        7 months ago

        You’re off on blood production. “Safe” would be once every six to eight weeks for a pint. Plasma can be taken a lot more often. The red blood cells take a while to replenish.

        But let’s get real. You’re not concerned about your enemy feeling well. Force them to take iron supplements and take a pint every other week. They’ll likely stay alive that way. Fuck em, right?

      • variants@possumpat.io
        link
        fedilink
        English
        arrow-up
        2
        ·
        7 months ago

        But remember they are your enemy so you could drain a bit more blood more often to shave a few years off maybe

    • knorke3@lemm.ee
      link
      fedilink
      English
      arrow-up
      2
      ·
      7 months ago

      But then you need to feed them iron-rich foods which could be used to make a vegan alternative instead, expanding your potential market.