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tate@lemmy.sdf.org 4 months agoScience can never answer “why.” In your example, the question why is just moved, from “why does it fall?” to “why does mass distort space-time?” In both cases physics just describes what happens.
Tlaloc_Temporal@lemmy.ca 4 months ago
But that is why it happens. Causality in most certainly something that can be discerned scientifically.
gandalf_der_12te@lemmy.blahaj.zone 4 months ago
But then, to follow up on your statement, what is the cause of all causes?
Tlaloc_Temporal@lemmy.ca 4 months ago
Not every action needs a cause. Especially when entering the subatomic level, quantum effects appear to be fully probabilistic. Nothing causes the electron to emit a photon exactly then at exactly that energy, it’s just something that happens.
Even at the largest scales, quantum effects have shaped the structure of superclusters of galaxies and in many models underpin the beginning of the universe.
At these extreme ends, the concept of causality gets weaker, and asking “Why?” starts to lose meaning. You could say nothing caused many things, or equally say they happened because they could.
In all cases encountered so far however, learning more has enabled us to identify new limits on possibility, and usually to narrow down on the details. It’s a practically endless series of "why"s that grow ever more exact, until we find the limits of what can be known. Maybe this chain has an end, maybe not, but to claim that science cannot answer any “Why?” is just wrong.
victorz@lemmy.world 4 months ago
I have to say this doesn’t sound very scientific to me.
Science would settle at “it’s just something that happens”? Certainly not the scientist in me, lol. Everything that happens is driven by something, in my mind. Some process. Even if it “appears” probabilistic or whatever. Seems like a probabilistic model is applicable to the behavior, perhaps, but we can’t measure or see such small things so we can’t really make any more detailed models than that. Isn’t that right?
So just because we don’t yet have a model for it or understand it fully, but we can describe it with some model, doesn’t mean we are finished or should stop there, IMO.
It’s like saying the dinosaurs went extinct after the youngest bones we’ve found. Or that they are exactly as old as the oldest bones we’ve found. But, we haven’t found all the dinosaur bones, or at least we can’t know that we have or haven’t. And we definitely haven’t found the bones of those dinosaurs that didn’t leave behind bones.
You feel what I’m getting at, kind of?
gandalf_der_12te@lemmy.blahaj.zone 4 months ago
Sorry for taking so long to write a response. I had to think a bit about this.
So, I don’t think it feels very satisfying to the average physicist to just say “well, atoms sometimes just spontaneously emit photons”. It’s a model that correlates well with our measurements, but there’s no proof that it is true.
In some sense, the purpose of science is to make sense of the world, and it surely isn’t the most satisfying thing to be left without an ulterior explanation. That is why I think it is important to repeatedly ask why, until one finds the primordial source of causality.