A Journey with Reservations
You might have gathered from my last post—*“Monkeys, UFOs, and Quantum Fractals: A Mind-Bending Journey through Relativity and Imagination”—*that I’m fully onboard with quantum mechanics. Relativity too, no questions asked, right?
Well, not quite.
In fact, I have plenty of questions. A LOT of questions. Why does quantum mechanics work like it does? How does it tie into everything else? What’s next? And, most importantly, where the heck did this all come from?
So while I use quantum mechanics on the regular, I'm always searching for answers. I read what physicists say, sometimes philosophers too (they've got interesting things to say when they're not being too vague). And recently, I stumbled upon a book that grabbed my attention.
The book? "The Emerging Quantum: The Physics Behind Quantum Mechanics" by Luis de la Peña, Ana María Cetto, and Andrea Valdés Hernández. What did they say that got me thinking even more?
Oh, just that quantum mechanics has some serious sins.
The First Quantum Sin: Uncertainty Is the Name of the Game
The book kicks off with a bold statement—there are six major sins of quantum mechanics. SIX. But honestly, I didn’t need to read past the first one. This first sin alone is enough to raise my eyebrows and start casting shadows on quantum's shiny reputation.
Let me explain.
Quantum mechanics is, at its core, an indeterministic theory. Sure, its mathematical laws play out deterministically, but when it comes to predicting real-world events? Good luck. The best it can do is throw out probabilities. You can’t pin down a specific outcome before it happens, no matter how much data you have.
Sound frustrating? It is.
But wait, you might say—classical physics has probabilistic elements too! True. The statistical mechanics of classical physics (think of gases in a box, or the movement of particles) also deal with probabilities. But here's the difference: in classical physics, we know exactly why we have to use statistics. There are so many particles, moving so randomly, that it’s impossible to track them all individually. The indeterminism isn’t a flaw in the theory; it’s just part of the reality we’re describing.
Quantum mechanics, though? It doesn’t even give us that. The randomness seems to be baked right into the theory itself, and that’s where the problem lies. We don’t have an explanation for it. It just... is.
The Difference Between Determinism and Causality
Now, let’s talk about determinism and causality. You might think they’re the same thing, but they’re not. Determinism is how we describe a system—the equations and predictions we make about what should happen. Causality, on the other hand, is the actual, real-life connection between things, the "why" behind the scenes.
If we think of nature like a computer, causality is the hardware, determinism is the software. If the hardware is broken, no matter how perfect your software is, you're not getting the right result.
So when we talk about quantum indeterminism, it becomes messy. Are we saying the universe itself is inherently random (the hardware), or is it just that we don’t have the right tools to describe it properly (our software is glitching)?
That’s the big question. And depending on who you ask, you’ll get different answers.
Digging for Determinism
Despite the quantum community mostly accepting indeterminism, some brave souls are still searching for a deeper, deterministic theory. Something that could explain all the weird randomness we observe in quantum mechanics, without giving up on the idea that the universe follows clear rules. But every time someone thinks they’re onto something, things get murky. Does indeterminism emerge from something deeper, or are we doomed to forever live in a probabilistic haze?
That’s where I’m at. Reading, searching, doubting, and asking: Is quantum uncertainty the end of the road, or is there a more solid foundation hiding beneath the waves?
In the end, the question still looms large: Is this quantum uncertainty just the tip of the iceberg, or are we really staring into the abyss of randomness?
Time to find out.
P.S. 07-09-24 10:17 John G. mentioned in his comment "infinite tensor product". Intuition tells me: that's it!
P.S. 07-09-24 12:08 Nanotechnology in action:
