Recent content by Iskandarani

@ohwilleke Thank you for taking the time to put together such a detailed, source-rich reply. That was a lot of work, and it shows. The mix of reviews, historical context, and up-to-date bounds is exactly what I needed to orient myself. I’ll treat your post as my reading list and work through it...

@Demystifier. Thank you, I appreciate the sugestion. If you have a favorite review/textbook section that walks through the hierarchy CED → QED (Heisenberg–Euler, running of α) → SM, and a standard treatment of Maxwell on curved backgrounds (constitutive-tensor viewpoint vs. “just” GR...

@PeterDonis: That's a very helpful distinction between predicting new phenomena versus calculating existing constants. I understand why post-diction can be viewed as weaker evidence; it's always a risk that a model is simply complex enough to be fine-tuned to fit known data. This raises a...

Thank you all for the excellent and challenging responses. I think I have a much clearer picture of the consensus view now. If I can try to summarize the main points I've gathered from your posts: Modern Lorentz Ether Theory (LET) is defined as being kinematically identical to SR, but with an...

that's a very clear and powerful argument. I understand completely. If the only job of a theory is to describe relativistic kinematics, then adding an undetectable preferred frame on top of SR is a textbook case for Occam's Razor. The additional entity does no work in explaining the phenomena...

That's the perfect way to frame the challenge. A model is only as good as its testable predictions, and I completely agree that this is where these "emergent" or "analogue" ideas must prove their worth to move from speculation to physics. This brings up a clarifying question for me about the...

Thank you both for these clarifications. @PeroK, you're right that the ultimate answer lies in a quantum theory of gravity. My question is more about the nature of the vacuum that such a theory would need to describe. @PeterDonis, thank you for the correction on the meaning of "vacuum" in GR...

Thank you, @Herman Trivilino, for that insightfull historical summary. It clarifies that the physics community was at a genuine fork in the road. (i dont know if fork is the right term, but as a programmer Im used to it) It seems one path, Lorentz's, was to propose new physical dynamics—real...

Thank you, @PeroK and @PeterDonis, for the very clear answers. That perfectly clarifies the scope of the Standard Model on this topic: the Higgs mechanism accounts for rest mass, but inertia itself is an inherent property within the geometric structure of spacetime. I appreciate you taking the...

Thank you, @Ibix. That is an incredibly helpful and concise answer. Giving me the precise term "Lorentz Ether Theory" is exactly what I was looking for. I understand why it's disfavored by Occam's razor if it's empirically indistinguishable from SR. I also completely understand and respect that...

I'm trying to understand the relationship between the Higgs mechanism and the concept of inertia. The Higgs field gives fundamental particles their rest mass, but it doesn't seem to directly explain why a massive object resists acceleration (inertia). My question is: How does the Standard Model...

Hi everyone, In deriving the Lorentz transformations, the constancy of the speed of light is typically taken as a starting postulate, based on experimental evidence like the Michelson-Morley result. My question is from a purely theoretical standpoint: Is it possible to construct a...

Hi, I'm trying to reconcile the view of the vacuum in General Relativity with the view in Quantum Field Theory. In GR, the vacuum is the stage for spacetime geometry, described by the metric tensor gμν. In QFT, it's a dynamic sea of virtual particles and zero-point energy. My question is: Do...

Thank you all for the replies and resources, this is very helpful. My apologies for the overly broad nature of my original question. @A.T. - I've watched the video you linked, and it did a great job of visualizing the core concepts. Thank you for that. @phinds - To take up your challenge and...

Hello everyone, I'm trying to strengthen my understanding of the foundational principles of Special Relativity. My intuition, like that of many classical physicists, leans towards a concept of absolute simultaneity, where we could determine a universal "now" by accounting for the travel time of...