As briefly as possible -- since 1957 we have been stuck in a "quantum trilemma" of 3 different categories of QM interpretation.
(1) Physical collapse theories (PC). These are always arbitrary and untestable (which is why none of them command a consensus).
(2) Consciousness causes collapse (CCC). These are derivative of John von Neumann, and they push collapse outside of the physical system. Usually come with idealism or panpsychism as the explanation of "what collapsed the wave function before consciousness evolved?" which implies brains aren't required for consciousness. Hence not popular.
(3) MWI. Denies collapse, but this implies our minds are continually splitting. Very hard to believe, hence more popular with Hollywood and the general public than with scientists.
Certain other interpretations (eg Bohm) try to evade the trilemma, but I don't believe any of them succeed in doing so, apart from by being fundamentally incomplete (Bohm tries to have his cake and eat it -- the unrealised branches are both real and unreal).
This looks logically exhaustive, because either the wave function collapses or it doesn't, and if it does then it either collapses due to something physical or consciousness collapses it from outside.
Then it occurred to me that there's another answer to the question "What collapsed the wave function before consciousness evolved?" What if nothing did? If you subtract consciousness from CCC then surely you are left with something very much like MWI. The only difference is that this is exclusively before consciousness existed, so we've got rid of the mind-splitting problem of MWI and the "before consciousness" problem of CCC at the same time (and without invoking idealism or panpsychism).
So this is the basic idea: a two-phase cosmology where MWI is true until consciousness evolves, and then CCC (Henry Stapp's version) becomes true afterwards.
This turns out to offer novel solutions to all sorts of problems. It already cleanly solves two massive ones -- the hard problem of consciousness and the measurement problem in QM. But that's just the start. At a stroke it solves all of the "Why was X set up just perfectly?" problems, including the fine-tuning of constants and the low-entropy initial state. These now cease to be mysterious because MWI guarantees consciousness will happen in one of the possible cosmoses (because in MWI everything that is possible actually happens), and then when it does happen that will become the only realised timeline (consciousness collapses the primordial wavefunction) and all the others will be "pruned". This also explains how consciousness can have evolved -- it was like Nagel's teleology (see Mind and Cosmos (2012)), except it doesn't need any "teleological laws" because the telos was structural (it was a "selection effect"). It can even explain why we can't quantise gravity, because gravity only emerges in phase 2 (with consciousness and spacetime). It also provides a new explanation for the Fermi paradox: the primordial wavefunction can only collapse once, so we should expect the rest of the cosmos to be devoid of life.
By the time I'd identified 15 of these major problems this model offers natural solutions to, I decided to put it down in a "paper" on Zenodo, just to document that this is my idea so nobody can steal it: The Participating Observer and the Architecture of Reality: A unified solution to fifteen foundational problems.
For a brief overview of the whole system read this.
But I am finding new ones all the time. For example this offers a solution to the "Axis of Evil" problem in cosmology..
From: https://www.space.com/37334-earth-ordinary-cosmological-axis-evil.html
"What's going on? The CMB shouldn't give two photons about our solar system — it was generated before the sun was a twinkle in the Milky Way's eye. And we can't find any simple astrophysical explanation, like a random cloud of dust in our southern end, that might interfere with the pristine cosmological signal in this odd way.
Is it really just coincidence? A chance alignment that we're conditioned to find because of our pattern-loving brains? Or does it seductively point the way to new and revolutionary physics? Or maybe we just screwed something up with the measurements?"
This new model provides the natural answer to this problem too. It says that the Earth really is the centre of the cosmos, not for the traditional theological reasons but because it was the epicentre of the phase shift, and the only centre of conscious life.
(1) Physical collapse theories (PC). These are always arbitrary and untestable (which is why none of them command a consensus).
(2) Consciousness causes collapse (CCC). These are derivative of John von Neumann, and they push collapse outside of the physical system. Usually come with idealism or panpsychism as the explanation of "what collapsed the wave function before consciousness evolved?" which implies brains aren't required for consciousness. Hence not popular.
(3) MWI. Denies collapse, but this implies our minds are continually splitting. Very hard to believe, hence more popular with Hollywood and the general public than with scientists.
Certain other interpretations (eg Bohm) try to evade the trilemma, but I don't believe any of them succeed in doing so, apart from by being fundamentally incomplete (Bohm tries to have his cake and eat it -- the unrealised branches are both real and unreal).
This looks logically exhaustive, because either the wave function collapses or it doesn't, and if it does then it either collapses due to something physical or consciousness collapses it from outside.
Then it occurred to me that there's another answer to the question "What collapsed the wave function before consciousness evolved?" What if nothing did? If you subtract consciousness from CCC then surely you are left with something very much like MWI. The only difference is that this is exclusively before consciousness existed, so we've got rid of the mind-splitting problem of MWI and the "before consciousness" problem of CCC at the same time (and without invoking idealism or panpsychism).
So this is the basic idea: a two-phase cosmology where MWI is true until consciousness evolves, and then CCC (Henry Stapp's version) becomes true afterwards.
This turns out to offer novel solutions to all sorts of problems. It already cleanly solves two massive ones -- the hard problem of consciousness and the measurement problem in QM. But that's just the start. At a stroke it solves all of the "Why was X set up just perfectly?" problems, including the fine-tuning of constants and the low-entropy initial state. These now cease to be mysterious because MWI guarantees consciousness will happen in one of the possible cosmoses (because in MWI everything that is possible actually happens), and then when it does happen that will become the only realised timeline (consciousness collapses the primordial wavefunction) and all the others will be "pruned". This also explains how consciousness can have evolved -- it was like Nagel's teleology (see Mind and Cosmos (2012)), except it doesn't need any "teleological laws" because the telos was structural (it was a "selection effect"). It can even explain why we can't quantise gravity, because gravity only emerges in phase 2 (with consciousness and spacetime). It also provides a new explanation for the Fermi paradox: the primordial wavefunction can only collapse once, so we should expect the rest of the cosmos to be devoid of life.
By the time I'd identified 15 of these major problems this model offers natural solutions to, I decided to put it down in a "paper" on Zenodo, just to document that this is my idea so nobody can steal it: The Participating Observer and the Architecture of Reality: A unified solution to fifteen foundational problems.
For a brief overview of the whole system read this.
But I am finding new ones all the time. For example this offers a solution to the "Axis of Evil" problem in cosmology..
From: https://www.space.com/37334-earth-ordinary-cosmological-axis-evil.html
"What's going on? The CMB shouldn't give two photons about our solar system — it was generated before the sun was a twinkle in the Milky Way's eye. And we can't find any simple astrophysical explanation, like a random cloud of dust in our southern end, that might interfere with the pristine cosmological signal in this odd way.
Is it really just coincidence? A chance alignment that we're conditioned to find because of our pattern-loving brains? Or does it seductively point the way to new and revolutionary physics? Or maybe we just screwed something up with the measurements?"
This new model provides the natural answer to this problem too. It says that the Earth really is the centre of the cosmos, not for the traditional theological reasons but because it was the epicentre of the phase shift, and the only centre of conscious life.
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