• Hellfire103@lemmy.ca
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    3 months ago

    “Know” is a stretch. Plants respond to attack by releasing chemicals (e.g. nettles and grasses), curling or retracting their leaves (e.g. acacia), or by changing their morphology (e.g. holly); but they have no nervous system - let alone a brain - so it’s not like you’re killing an animal.

    • prettybunnys@sh.itjust.works
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      3 months ago

      Plants having no nervous system is being challenged with the idea that the plant itself is its central nervous system.

      They react to stimulus, they emit sounds (different ones when in “pain”), and communicate with each other.

      They don’t have consciousness in a way we understand

      I dont mean this as a “dunk” but more of a how neat is that

    • 🇰 🌀 🇱 🇦 🇳 🇦 🇰 ℹ️@yiffit.net
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      3 months ago

      We don’t know how consciousness works enough to say they don’t. Having a brain and/or nervous system might not be necessary.

      They don’t have muscles either, but some plants are known to uproot themselves and fucking move.

      • strawberrysocial@lemmy.world
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        3 months ago

        Yeah, plants aren’t stationary. All plants move, just very, very slowly compared to animals. Looking at time lapse videos of vines growing, reaching out for something to grab on to and stuff is pretty neat. They kind of whip around in circles until they feel they’ve hit something worth grabbing onto.

      • nifty@lemmy.world
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        3 months ago

        We don’t know how consciousness works enough to say they don’t. Having a brain and/or nervous system might not be necessary.

        Hmm sorry but no, there are traits exhibited by conscious entities which we don’t observe in those which lack consciousness. This is a nice explainer on consciousness, note that it’s not saying anything about needing a brain to exhibit those traits

        https://plato.stanford.edu/entries/consciousness/#DesQueWhaFeaCon

        correct me if I am misremembering sth

        • howrar@lemmy.ca
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          3 months ago

          there are traits exhibited by conscious entities which we don’t observe in those which lack consciousness.

          Implying we have a way of determining whether an entity is conscious or not. That’s the entire point of contention here.

        • kronisk @lemmy.world
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          3 months ago

          which we don’t observe in those which lack consciousness.

          See what you did there? You assume a priori which entities lack consciousness, and then motivate this by claiming they lack traits that can be observed in conscious entities. That is very neatly circular.

          • nifty@lemmy.world
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            3 months ago

            What you and other people who’re objecting to my comment are saying is that there is no way to define consciousness because we don’t know all the different ways something can be conscious. But that doesn’t matter because these organisms lack the properties which we see in other conscious organisms, ie proprieties we do know about

            Here’s what I am saying: consciousness is an emergent property of some discrete biological processes, and we have developed some idea of what consciousness looks like when exhibited by an organism.

            So that means that all organisms which are conscious have to exhibit the same properties. You cannot pick and choose which properties to exhibit because then what you’re doing is something else, and not exhibiting consciousness.

            Like, if you’re a heart of some sort, you have to exhibit the same activity as a heart in general across all different organisms to be classified as a heart.

            It’s possible that same organisms exhibit some parts of consciousness as we have noticed till now, but if those organisms do not exhibit all parts of consciousness then they’re not conscious.

            • kronisk @lemmy.world
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              3 months ago

              So, I’m guessing everyone in this thread has a different conception of what “consciousness” actually is and what we’re talking about here, which makes it difficult to discuss casually like this. You seem to have a very exclusive definition of consciousness, which only serves to avoid the argument, really. “It’s possible that same organisms exhibit some parts of consciousness as we have noticed till now, but if those organisms do not exhibit all parts of consciousness then they’re not conscious”…you’re splitting hairs. If plants could be proven to be aware, have subjective experience, a sense of self, it would be reasonable to change our definition of consciousness to be more inclusive - simply because such a concept of consciousness would be a lot more useful then.

              Emergentism is a popular hypothesis, not a fact. Christof Koch lost the bet, remember? The idea that “all organisms which are conscious have to exhibit the same properties” and “you cannot pick and choose” does not logically follow from anything you’ve said. These are criteria that you set up yourself. Take the idea of qualia as an example, how could we ever observe that an animal or a plant does or does not experience qualia? Nobody solved the problem of other minds.

              Consciousness is nothing like a heart; the function of the heart can be observed and measured. How do you know that you possess awareness? You can only experience it. (Actually, that we are aware is the only thing we can know with complete certainty.)

              • nifty@lemmy.world
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                3 months ago

                Er, that’s what I am saying however is that you can observe and measure consciousness.

                You seem to have a very exclusive definition of consciousness, which only serves to avoid the argument, really.

                I don’t, I am just going based on current findings.

                I am not sure why it’s hard to accept that some living things may not be conscious. Viruses propagate “mindlessly”, they’re neither living nor conscious.

                I also don’t understand why you think emergent properties are a hypothesis. Emergent properties of biological processes are fact, look at any cell of any major organ in the body. Why do we treat the brain differently? Because I think we get irrational.

                • kronisk @lemmy.world
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                  3 months ago

                  Er, that’s what I am saying however is that you can observe and measure consciousness.

                  Going with any definition of consciousness relevant to this discussion, say phenomenality and/or awareness, no.

                  I am not sure why it’s hard to accept that some living things may not be conscious. Viruses propagate “mindlessly”, they’re neither living nor conscious.

                  That’s not really the point - I don’t claim to know what entities possess consciousness. The point is that you don’t either.

                  I also don’t understand why you think emergent properties are a hypothesis. Emergent properties of biological processes are fact

                  Obviously I’m talking about Emergentism as it relates to consciousness, and the idea that consciousness is an emergent property is not a fact, no. And there are perfectly valid reasons - for example, the “explanatory gap” - why someone might find it unsatisfactory.

        • strawberrysocial@lemmy.world
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          3 months ago

          How will we ever know for sure if plants have their own form of consciousness that doesn’t follow a list of requirements that’s based on animals, or can feel pain.

          • nifty@lemmy.world
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            3 months ago

            But why do you think plants should have some own form of consciousness? All organism which have circulatory systems have generally similarly behaving circulatory systems. So why should consciousness be different?

            No, if an organism does not exhibit all properties of consciousness that we see in all other organisms, then it’s not conscious

            • strawberrysocial@lemmy.world
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              2 months ago

              I see what you are saying, but maybe you’re looking at it from an animal perspective instead of a plant one. They could have consciousness in their own way that’s not similar to ours, so we think they are “brainless” or not aware of what’s going on. I’m not a scientist but I do wonder about plants. They are living creatures.

    • ChicoSuave@lemmy.world
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      3 months ago

      They have the knowledge and are doing something about it. If other plants can send out this chemical by observing it themselves, that sounds like a reaction from a communication. It may not be cognition like we expect but it is behaving like cognition would. Hard to argue that plants don’t know or care of their friends start dying.

      • kshade@lemmy.world
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        3 months ago

        I’d argue that knowledge is more than that, otherwise books or state machines could also be said to know things.

        • ChicoSuave@lemmy.world
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          3 months ago

          The plants are acquiring information and making an independent change to their status with this information. Books do nothing with knowledge other than communicate it to others. Machines are unable to make independent changes to itself unless programmed to do so.

        • ChicoSuave@lemmy.world
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          3 months ago

          I don’t care what a plant thinks of me; it won’t change the dynamic that I’m motivated and it’s prey.

          My point is that plants “think” but do so differently than meat bags. Plant cognition is more like a series of low level chemical reactions that look like thinking, but so does brain chemical squirts if we look close enough. So plants may actually be thinking using mechanisms which don’t rely on complex brain architecture because it has another method of processing that thought. Probably across the whole structure but the process is really inefficient so it takes a long time to finish compute.

          Like if a super computer made the judgement of a calculator - they are both crunching numbers but there is an order of magnitude difference in how fast the answer is found. Maybe a plant has low bus speeds and crappy compute limited to simple threaded operations.

    • VelvetStorm@lemmy.world
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      3 months ago

      Lobsters contain 15 nerve clusters called ganglia dispersed throughout their bodies, with a main ganglion located between their eyes. So, according to the logic here whyis it wrong to boil them alive if they don’t have a brain?

      For the record, imo it is wrong to boil lobster, crabs, and other crustaceans alive. There is no reason you can’t kill them directly before boiling them.

      • Hellfire103@lemmy.ca
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        3 months ago

        Some of them eat oysters, or so I’m told. They lack a brain and centralised nervous system.

        • Ms. ArmoredThirteen@lemmy.ml
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          3 months ago

          One of my exes is very strictly vegetarian and will eat oysters. Oysters lack the capacity to consciously be aware of themselves or the environment, effectively they’re a water pump made out of meat, and they’re one of the most sustainable foods we can make leading to less planetary harm than a lot of plant crops even. It’s definitely a controversial opinion though

          • x4740N@lemm.ee
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            3 months ago

            When talking about the capacity to consciously be aware of themselves (the oysters) how is that actually measured and what do they look for

            How are we sure they are not actually self aware through some other unknown mechanism

            • Ms. ArmoredThirteen@lemmy.ml
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              3 months ago

              I am not a biologist but my understanding is that largely has to do with a lack of central nervous system. It would be like asking if a heart is aware of itself. It can autonomously react to things like low oxygen but that isn’t because those signals go anywhere that makes a decision it’s more like a chemical/biological Rube Goldberg machine. If you really want to get down to it though I don’t think we can know for certain just make educated guesses, and imo oysters are even less likely to have any form of consciousness than a lot of plants or mushrooms

          • MonkderVierte@lemmy.ml
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            3 months ago

            Oysters lack the capacity to consciously be aware of themselves

            Fish too btw, as far as we know. Lizard brain is an evolution of fish brain, they are basically biological automata.

            Makes one think, live getting on land was it getting into hard mode.

            one of the most sustainable foods we can make leading to less planetary harm than a lot of plant crops even

            I did read about damaging effects of oyster farms though, the ones with cages, because of their poop/piss(?). But sure, because hundreds in one place.

            • Ms. ArmoredThirteen@lemmy.ml
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              3 months ago

              I did read about damaging effects of oyster farms though

              Yeah no monoculture farm is without it’s damage, for sure, but oysters are real low on the list. They are filter feeders so don’t need any additional food source or fertilizer you just seed them somewhere and pull them out as needed. A single one filters something like fifty gallons of water a day, capture carbon for their shells, and they’re incredible at pulling heavy metals out of the water but that’s not something they’re utilized for at scale afaik because then humans wouldn’t want to eat those ones

      • tiredofsametab@fedia.io
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        3 months ago

        If it helps give context, various … factions? (I’m not sure the best word here) consider honey OK and others do not. You can research that more if you want to get an idea of what some vegans might think.

        • zeekaran@sopuli.xyz
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          3 months ago

          Vegans don’t really have factions. Every single one is an individual with their own values.

          • tiredofsametab@fedia.io
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            3 months ago

            Yeah, I couldn’t think of a better word at the moment. “schools of thought” is probably a better one for grouping overall themes that exist within the vegan movement.

    • KillingTimeItself@lemmy.dbzer0.com
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      3 months ago

      by this logic do people even truly exist. Maybe you’re just the only real person in the world, maybe im the only real person in the world, we have no way of proving this.