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Physics Stack Exchange users whose comments are worth studying include Lubos Motl and Ron Maimon (now at http://www.quora.com/Ron-Maimon and http://www.physicsoverflow.org/user/Ron+Maimon). Also see http://arxiv.org/abs/hep-ph/0207124 for a review of physics since the standard model.


Aug
23
comment Can superdeterminism resolve contextuality, entanglement and Shor's algorithm in quantum mechanics?
so you can't get the right statistics just by relying on the subquantum vacuum being the same everywhere.
Aug
23
comment Can superdeterminism resolve contextuality, entanglement and Shor's algorithm in quantum mechanics?
The distant past is a causal antecedent of both the experimental settings and the EPR pair. But for the experimental settings, the local chain of cause and effect "passes through" the mouse, whereas it does not do so for the EPR pair. The scenario is that the selection of experimental setting is determined by what happens inside the mouse, a complicated macroscopic process...
Aug
22
comment What criteria distinguishes causality from retrocausality?
One reason that this is annoying is that you actually have something to say, but since it is scattered across a dozen identities, it's not possible to see how your thoughts connect.
Aug
22
comment What criteria distinguishes causality from retrocausality?
And "Naive stupid boy" who posted 10 minutes later. physics.stackexchange.com/q/34713/1486
Aug
22
comment What criteria distinguishes causality from retrocausality?
Are you the same person as "Combative and confrontational", "Very difficult person", and perhaps dozens of other one-time posting identities?
Aug
22
comment What is the relation of the release time of fossil fuel emissions to climate change?
This is much more than a physics question since the effects are supposed to be economic and environmental. The physics part of the question would concentrate on the time evolution of climatic variables that results from the different emission trajectories.
Aug
21
comment Shor's algorithm and Bohmian Mechanics
Needless to say, it would be interesting to understand exactly where the "quantum speedup" comes from, in a "theory" where there is no exponentially large state space. Instead it must somehow come from the complexity of the nonlocal interaction.
Aug
21
comment Shor's algorithm and Bohmian Mechanics
The unexplored frontier of Bohmian mechanics is the "nomological" form, where you treat the pilot wave as a law of motion. That is, if you specialize to BM with a specific wavefunction, you can just eliminate the wavefunction from your ontology, and you're left with a local and a nonlocal potential for a "classical" system. No-one has seriously investigated this option - not as physics, and certainly not from a computational perspective.
Aug
20
comment Can superdeterminism resolve contextuality, entanglement and Shor's algorithm in quantum mechanics?
The immediate cause of the experimental settings is the number of mouse droppings. So in this case, the chain of cause and effect from the distant past to the choice of experiment passes through the mouse's gut. The chain of cause and effect from the distant past to, e.g., the photons in an EPR pair does not. So it is still ridiculous, because it asserts that rodent digestion is a high-fidelity medium for communicating which subquantum vacuum we're in.
Aug
20
answered Can superdeterminism resolve contextuality, entanglement and Shor's algorithm in quantum mechanics?
Aug
20
revised 't Hooft's landscape of conformally constrained QFTs
exact *local* scale invariance
Aug
20
asked 't Hooft's landscape of conformally constrained QFTs
Aug
19
comment The transactional interpretation of quantum mechanics
Related: physics.stackexchange.com/questions/28111/…
Aug
19
comment Retrocausal interpretations of quantum mechanics
Related: physics.stackexchange.com/questions/3767/…
Aug
17
awarded  Fanatic
Aug
16
comment Is quantum entanglement an objective or subjective property?
Is it also '"head in the clouds" theoretical speculation' to believe that the world keeps existing when your back is turned? If not, what's the difference?
Aug
14
answered Discreteness and Determinism in Superstrings?
Aug
12
comment Discreteness and Determinism in Superstrings?
"The difference between an electron with spin up and an electron with spin down is only one bit of information"... What about the difference between one orientation of a polarization filter, and another orientation? The number of bits there is bounded only by the angular resolution you can achieve. It's a lot of information to hide in the vacuum or in the choice of phases.
Aug
11
comment Discreteness and Determinism in Superstrings?
So basically, I consider this work an important contribution to the cause of realism in QM, it breaks new ground there. But I don't think you'll get quantum-like nonlocality from a local CA unless there is some nonlocality in the transformation from CA grid coordinates to space-time coordinates.
Aug
11
comment Discreteness and Determinism in Superstrings?
That these papers contain CAs which are equivalent to QFTs (in the limited sense that CA evolution maps to eigenvalue evolution for certain states and observables in the QFT) is no guarantee that it will even be possible to construct a "Bell scenario" in the QFT. The May paper describes a free field theory - good luck building a "detector" with that physics! - and the July paper a type of "interacting" string theory whose potentials are still unknown. The conservative prediction is that there will be no-go theorems explaining why these models, though quantum, aren't counterexamples to Bell.