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Cake day: July 18th, 2023

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  • Theoretical biologist here. I consider viruses to define the lower edge of what I’d consider “alive.” I similarly consider prions to be “not alive,” but to define a position towards the upper limit of complex, self-reproducing chemistry. There’s some research going on here to better understand how replication reactions (maybe encased in a lipid bubble to keep the reaction free from the environment) may lead to increasing complexity and proto-cells. That’s not what prions are, but the idea is that a property like replication is necessary but not sufficient and to build from what we know regarding the environment and possible chemicals.

    I consider a virus to be alive because they rise to the level of complexity and adaptive dynamics I feel should be associated with living systems. I’ll paint with a broad brush here, but they have genes, a division between genotype and phenotype, the populations evolve as part of an ecosystem with all of the associated dynamics of adaptation and speciation, and they have relatively complex structures consisting of multiple distinct elements. “Alive,” to me, shouldn’t be approached as a binary concept - I’m not sure what it conceptually adds to the discussion. Instead, I think it should be approached as a gradient of properties any one of which may be more or less present. I feel the same about intelligence, theory of mind, and animal communication.

    The thing to remember when thinking about questions like this is that when science (or history or literature…) is taught as a beginner’s subject (primary and secondary school), it’s often approached in a highly simplified manner - simplified to the point of inaccuracy sometimes. Many instructors will take the approach of having students memorize lists for regurgitation on exams - the seven properties of life, a gene is a length of dna that encodes for a protein, the definition of a species, and so on. I don’t really like that approach, and to be honest I was never any good at it myself.


  • There are certainly a lot of species that live in what we might consider inhospitable conditions, and there have been massive ecosystem and environmental shifts in the history of life on earth.

    However, the chemistries and conditions needed to form macromolecules and lipid globules that could protect and contain them (which is one candidate for proto-life) might not have that full range of adaptability. Keeping chemical integrity in potentially harsh conditions (in terms of temperature or environmental chemistry) depends on a whole cascade of cellular chemistry that’s unavailable to proto-cells.

    Finding even a single example of extraterrestrial life - even bacterial mats - would absolutely revolutionize biology, and I hope we manage to do it, especially if I’m still around to see it.



  • No, computer engineering tends to focus more on hardware. When I was doing that kind of thing in college, computer engineering did things like chip design and logic boards and so on. I had courses on DSP and VLSI, multiple assembly languages, RISC vs CISC systems, and so on. In my university, it was considered a subspecializqtion of electrical engineering, with the first two years of undergraduate study being identical.

    When I switched over to CS, I was doing things like numerical analysis and software systems architecture.

    Both majors used math, but CE (as an EE major) required students to go through (iirc) calculus 5, and I think that CS majors could stop at calc 3 but would end up having to do different kinds of math after that.


  • I’m a theoretical biologist.

    The best book I read on multilevel selection theory was actually written by a professor of philosophy. The author broke down the individual concepts, as they do, so that anyone reading it knew exactly what each technical term referred to. Biology is my favorite subject because there’s so much that we’re still figuring out and it’s just ridiculously complex.

    I might have had a similar hot take as an undergrad when everyone has an ego based on their major - and I was even a computer engineering student for awhile, and engineers tend to be even worse at that sort of thing.






  • I don’t see a future utopia (or non-utopian) society a thousand years from now feeling at all compelled by a legal agreement between two independent parties a millennium ago. The law firms that set up the contracts will be long gone, the legal framework that established them will have evolved if not been replaced completely. I mean, compare where we are now with where “we” were in 1024, and then think about how much more quickly things change today. Any money is going to be more meaningless than 11th century money, but with no collector’s value since they’re just numbers in a database that probably won’t even exist in a thousand years.

    I think we can legitimately view having your body/head frozen in the hopes of being woken up as a tech version of the Catholic last rites.


  • Cool! There’s probably a small factor differentiating the two, but it’s not that noticeable.

    I did a research project looking at (iirc) kinase cascades, in which we were using a molecule-by-molecule simulation to look at cascading signals in hypothetical signaling networks, and varied the levels of phosphorylation required for activation required at each tier, and showed how the different topologies/rules governed the relationship between input and output signals, and their relationship to noise tolerance (since chemical networks can be quite noisy). It was very abstract in that we weren’t reconstructing known networks, but rather using sandbox physics to explore the idea.




  • I think that peacock spiders and related species can help people get past arachnophobia. They’re cute, they’re intelligent, and they have entertaining behaviors. The fact that they have the two large forward facing eyes makes them look less alien.

    If you want to try exposure therapy for arachnophobia, they’re a great starting point imo.



  • PrinceWith999Enemies@lemmy.worldtoScience Memes@mander.xyzCorvids
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    5 months ago

    Here’s the thing. You said a “jackdaw is a crow.” Is it in the same family? Yes. No one’s arguing that. As someone who is a scientist who studies crows, I am telling you, specifically, in science, no one calls jackdaws crows. If you want to be “specific” like you said, then you shouldn’t either. They’re not the same thing. If you’re saying “crow family” you’re referring to the taxonomic grouping of Corvidae, which includes things from nutcrackers to blue jays to ravens. So your reasoning for calling a jackdaw a crow is because random people “call the black ones crows?” Let’s get grackles and blackbirds in there, then, too. Also, calling someone a human or an ape? It’s not one or the other, that’s not how taxonomy works. They’re both. A jackdaw is a jackdaw and a member of the crow family. But that’s not what you said. You said a jackdaw is a crow, which is not true unless you’re okay with calling all members of the crow family crows, which means you’d call blue jays, ravens, and other birds crows, too. Which you said you don’t. It’s okay to just admit you’re wrong, you know?


  • I think this is the same thing streaming media companies are realizing. When it was just pretty much Netflix, media companies would license them their content and Netflix would get their subscription fees. Then the media companies decided that they could earn more by cutting out the middleman and producing their own content.

    This created a headwind where companies established departments for producing content for streaming and funded them generously. However, the fragmentation on the consumer end ended up splitting the market such that it became unprofitable to run at those levels - everyone wanted $10 per month to subscribe to their dedicated service, and looked to in house productions to drive consumer loyalty. That, predictably, fell apart and now they’re increasing fees, cutting down on family accounts, and cutting productions.

    I think that the massive layoffs we are seeing in the gaming industry is a similar reaction. Game budgets have become bloated to the point of being unsustainable. I feel badly for the devs and staff affected by the contraction, and I remain impressed by the size of the game market overall, but at some point, like streaming media companies, you have to realize there’s only so much pie to go around. The size of the pie does grow, but the expectation of demand has significantly outpaced demand.