this post was submitted on 12 Jul 2026
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[–] IAmNorRealTakeYourMeds@lemmy.world 1 points 16 hours ago (1 children)

fire, isn't alive. it isn't biologically.

and we aren't a thing, we replace our matter constantly, hence the matter wave idea.

The point is that basically every definition will fail in some edge cases.

and it ends up being more about philosophy than biology,

the whole point is that there's no biological definition for life. we have one for medical context (brain dead, but mostly depending if it can be reversed, as soon as/if we figure how to resuscitate a brain dead person, we will have another threshold for the definition).

I think there's a really good infinite monkey cage episode about this, one of their best episodes, I think it's "what is death" from series 8. not 100% sure. but it's a great listen anyways

[–] Steve 0 points 15 hours ago* (last edited 11 hours ago) (1 children)

fire, isn’t alive. it isn’t biologically.

As I said, life is unrelated to biology.

we aren’t a thing, we replace our matter constantly

Yes, as parts wear out they are replaced, but they aren't single use. That is the nature of a system. As I said, a system can be considered a thing. Fire is not a thing, because it is not a system of reusable parts that interact with each other multiple times. It's better described as a chemical chain reaction. Every molecule is used exactly once. However the illusion of continuity of the flame, can be useful at times to be considered alive. But it's certainly not the most accurate label for fire.

it ends up being more about philosophy than biology, [...] there’s no biological definition for life.

Agreed. Again, my definition has nothing to do with biology. Mechanical systems might be able to perform the actions of life. Even some software may be considered alive within it's environment.

The issue at hand anyway, isn't the line (zone really) between life and death, but the definition of a corpse. To me that seems pretty clearly the point when a system stops working to maintain itself, stops fighting entropy. The remaining structure of the system then starts to break down, falls apart into it's constituent pieces. Corpse-ing is the process that starts, when the process of dying ends.

[–] IAmNorRealTakeYourMeds@lemmy.world 1 points 9 hours ago (1 children)

there, you're getting too philosophical and abstract.

fire isn't alive, isn't cannot evolve, no evolution... and you're definitely failing biology.

point is that the highschool definition is bs, no biologist uses it, yet you're stubbornly stick to it like a contrarian.

[–] Steve 1 points 6 hours ago* (last edited 6 hours ago) (1 children)

Again. Alive isn't biological.

You're very hung up on only biological things being alive. Which is strange when you yourself said biology has not good definition.

[–] IAmNorRealTakeYourMeds@lemmy.world 1 points 6 hours ago (1 children)

Biology is the study is life.

If it is alive, it is under the purview of Biology.

what you're doing, is trying to fit anything that fits the Highschool definition as alive. and you end up with chemistry rather than life.

You are very hunged up on highschool oversimplifications.

if fire is alive, would using a lighter count as abiogenesis?

[–] Steve 1 points 4 hours ago* (last edited 3 hours ago) (1 children)

there's no biological definition for life.

Biology is the study of life.

Do you see how that doesn't work?

Biologists called themselves "The Study of Life", some 200 years ago. They did so with very little knowledge, and lots of ambition. Also known as hubris.

[–] IAmNorRealTakeYourMeds@lemmy.world 1 points 2 hours ago (1 children)

And fire is clearly chemistry and not biology.

We just study life and don't bother with the definition, its a "you know it when you see it" kind of thing

[–] Steve 1 points 1 hour ago* (last edited 1 hour ago) (1 children)

its a “you know it when you see it” kind of thing

I'm not sure you're a good advocate for the sciences.

I also think you might have reading comprehension issues. I did explain, I think four times, how fire isn't technically alive, but in certain circumstances it can be a useful analogy. I don't know why you keep banging on that drum.

[–] IAmNorRealTakeYourMeds@lemmy.world 1 points 1 hour ago (1 children)

'how fire isn’t technically alive'

Why not?

It fits all the high school definition?

[–] Steve 1 points 1 hour ago (1 children)

I explained that.
See. You didn't actually read what I wrote. You're not good at this.

[–] IAmNorRealTakeYourMeds@lemmy.world 1 points 1 hour ago (1 children)

you just said it can be considered alive, but then you say isn't

my point is simple, ask anyone with a biology degree,. that highschool definition is oversimplified and not useful. there is no working definition of life

[–] Steve 1 points 25 minutes ago (1 children)

You really don't know how to read do you?

But really, it’s more accurately a chain reaction. Fire isn’t a ‘thing’, it’s not a system of repetitively interacting parts.

Fire is not a thing, because it is not a system of reusable parts that interact with each other multiple times. It’s better described as a chemical chain reaction. Every molecule is used exactly once.

I never mentioned high school. I never took biology in high school. I took physics instead. I gave you my specific definition. You thought it sounded like something you remember from high school, and ignored what I actually said.

That which takes in nutrients, processes them to support itself, and expels waste products.

Fire doesn't actually support itself. Each flame is gone in an instant, unique to the molecule it came from.
But is creates the illusion of continuity, which can make life a useful analogy for it sometimes.

If you still don't understand. I don't know how better I can explain it for you. I've already given you too much credit. I'm done.

[–] IAmNorRealTakeYourMeds@lemmy.world 1 points 4 minutes ago

Fire 100% supports itself, each flame dies but that is like saying each of your proteins get denatured and recycled, the carbon you eat eventually turns into CO2, all your matter changes at some point.

That which takes in nutrients, processes them to support itself, and expels waste products. It is not a good definition of life, as it also excludes spores or many creatures in stasis, where they have absolutely no metabolism, wont take nutrients, process them or expel anything.