ironmarlin1 said:Even when we start talking about them, what does one even mean by "abstractions"? To me, it doesn't feel any more sophisticated than just admitting, "I haven't got a clue." If someone tries to claim that a number is merely an abstraction, I don't think they can possibly mean what kresho2 is suggesting here:
Abstractions are simply the descriptions we humans use to label or identify things that exist in the world.
Because, let’s be honest, numbers aren't adjectives or descriptive labels—and neither are elements like helium or hydrogen. 🤷
Let me break down how abstractions actually work, then you can draw your own conclusions about what they are.
If humans (like me) didn't have minds, nothing would matter—the word
everything and
something would mean the exact same thing. There wouldn't be any distinction between, say, a wall, a cabinet, or the sky. You couldn't tell anything apart.
Luckily, my brain "slices" reality into objects. When I look at a cabinet, I see the edge separating it from the wall and the floor—my mind creates that distinction, allowing me to view that object (the cabinet) as something separate from everything else.
Once I mastered those boundaries (the edges), all I have left are objects. A cabinet is an object, a wall is an object, the sky is an object, a table is an object, a chair is an object... but that doesn't tell me much, so I give each one a different label. That’s where abstraction kicks in.
To exaggerate: when I was a kid, I saw
something that had a flat surface where people sit. I asked my mom, "What's that?" and she gave me a name for it—
a chair. Way to go, me—I made an abstraction! 🙂
What really happened was that I spotted a new object that looked different from anything I'd seen before.
But abstraction isn't just a name. When I saw the chair and Mom told me what it was, I had to link that info together. Basically, I took the most similar trait shared by other objects (a flat surface) and found the biggest difference compared to other flat things (people sit on this). So, I tied the name (the abstraction) to the physical object (the chair).
Hopefully, that clears up what an abstraction is and how it functions.
If that makes sense—which I hope it does—then it's also clear that "chair" is just a word describing the basic traits of an object. The word itself doesn't exist in the wild; it's just an explanation or a label for what I'm seeing.