Mirror Life Worries

(science.org)

18 points | by etiam 4 hours ago ago

8 comments

  • nakedrobot2 an hour ago

    Please future humans, do not build mirror life.

    Thanks.

    • card_zero an hour ago

      From the point of view of a newly created colony of opposite-handed bacteria, it would be facing an entire planet of really well established mirror life.

      • stravant an hour ago

        Ever heard of invasive species?

        That's the problem. Mirror life may not be a problem for the biosphere in the long run but it could totally be a problem for humans in the short run.

        • gus_massa 26 minutes ago

          Mirror species can eat the local species, so they have it easy.

          Mirror life can only use the fats and a few amino acids of the normal life. All sugars have chirality so they would need some enzymes to east their own mirrored sugars and another set of enzymes to eat normal sugars. Also, most amino acids have chirality and they would have to reverse them or make their own.

          So even if someone waste a few gazillions dollars to make mirror life, it would not be able to eat most normal food.

      • blibble an hour ago

        yes it seems unlikely that it would be able to outcompete everything already on earth

        if it did I would have thought it would have appeared in the past 5 billion years or so

        • ejstronge 19 minutes ago

          > if it did I would have thought it would have appeared in the past 5 billion years or so

          It may have appeared and been outcompeted. That doesn’t suggest its (artificial) reintroduction would again be outcompeted

          • XorNot 3 minutes ago

            It does actually, because it implies it fought and lost that battle the first time.

            Now, with L-amino life everywhere it would have an even bigger starting problem.

            We see this with extremophiles: organisms which can grow in nuclear cooling ponds full extremely badly when transplanted to nutrient rich environments with other, less capable organisms.

  • ajuc an hour ago

    Hopefully mirror antibiotics are earlier in the tech tree than mirror life.