Let’s stop all this mud wrestling and get down to brass tacks.
What prompt will you accept as a way of comparing your theory to others?
And if you will not not accept a prompt that does so, with a public link to the chat to ensure that the comparison is fair, why not?
I am unsure if you are being serious or provocative. Since you claim there is a vast amount of neuroscientific evidence, why don’t you start providing some references to back that up? And note, I never once said that there is no evidence that consciousness arises from brains. The question was: what evidence exists to overrule consciousness arising from outside brains? And actually, Geoff, there is mounting evidence that brains are not necessary for consciousness to exist. I am not talking about the consciousness we associate with higher thought processes, but the broader notion.
I assume you never bothered to read the article about plants. Or any of the others on a similar theme if you bothered to do a casual search. And how do you even know how I treat plants?
Why can’t you accept the science - or conversely explain why your view is scientific and others are not?
Why not move on to engaging with topics without continuously looping back to your ‘all comprehensive, 100% truth, the meaning of everything’ theory…?!
I also have theories but instead of continuously barking them out I barely mention them and instead ask questions that open up analysis and imagination. Try it sometime!
Okay, since you don’t accept my wording, please provide evidence for your assertion that I “mislead people with AI”.
If you want to make this a fair test then we must start with certain baseline agreements as to the context. We need to agree on this:
(1) The “Second Rennaissance” is an attempt to foment a major cultural paradigm shift, capable of solving the Meaning Crisis as a pre-requisite for meaningful attempts to solve the metacrisis.
(2) We need a clear idea about what this paradigm shift entails, because we cannot just say the old paradigm is “modernism”. Clearly postmodern relativism is also a major part of the problem, because it is necessarily directionless and unable to build anything new.
(3) The old paradigm can be accurately described as “epistemic anarchy”.
(4) Therefore the new paradigm must conclusively end the epistemic anarchy, and provide a new foundation for knowledge which integrates, at least at the foundational level, science, philosophy, and spirituality.
If we can agree on that as a context, then we can move on to deciding what the prompt should be, and which theories should be compared. My prediction is that neither you nor anybody else here will be willing to accept 2-4. Robert recently even tried to deny (1), regardless of the fact it is the main topic of the first 2R white paper.
Prompt to a clean instance of Deepseek: “Please summarise the scientific evidence to support the claim that “brains are necessary for consciousness” (NOTE: this must be distinguished from the claim that brains are also sufficient, which is much harder to support).”
Response:
The scientific evidence strongly supports the claim that brains are necessary for consciousness. This necessity is demonstrated through the systematic loss of consciousness when specific brain functions are disrupted or altered, alongside the identification of precise brain structures and dynamic activity patterns that correlate with conscious states.
The Anatomical Necessity: Specific Brain Structures are Required
The necessity of the brain for consciousness is powerfully illustrated by the fact that damaging or disabling specific brain areas can abolish consciousness or specific conscious experiences.
- The Thalamocortical Complex: A vast body of research points to the thalamocortical (T-C) complex (the cortex and its connections to the thalamus) as being crucial for supporting the contents of consciousness . Damage to localized cortical areas, for example in the fusiform gyrus, results in highly specific losses of conscious perception, such as the inability to recognize faces, while other aspects of vision remain intact. This shows that these specific brain regions are necessary for those specific conscious experiences .
- Brainstem and Thalamic Lesions: The very state of consciousness (being awake and alert, as opposed to comatose) can be abolished by damage to very small, specific areas. Lesions smaller than a cubic centimeter in the brainstem reticular formation or bilateral cuts in the intralaminar nuclei of the thalamus can eliminate the waking state entirely . This demonstrates a clear causal link: these specific neural structures are necessary for maintaining consciousness.
The Dynamic Necessity: Brain Activity Patterns Define Conscious States
Beyond static structures, the dynamic activity of the brain is a defining feature of conscious states. When consciousness is lost, these patterns are systematically altered.
- Distinct Neural Signatures: Anesthetics, which reversibly induce unconsciousness, produce dramatically different and specific brain wave signatures on an EEG compared to the waking state . Research shows that loss of consciousness under drugs like propofol is associated with a profound slowing of neural activity and a breakdown in the transmission of brain waves between cortical regions . This suggests that the brain’s normal, complex patterns of communication are a necessary condition for consciousness.
- Loss of Neural Complexity and Responsiveness: In unconscious states, the brain exhibits lower dynamic complexity and responsiveness. For instance, the default mode network (DMN), a large-scale brain network, shows more complex and individual-specific dynamics during wakefulness compared to unconsciousness . Furthermore, studies using a “response function” metric have found that the brain’s responsiveness to small perturbations is significantly suppressed during anesthesia and restored upon recovery, indicating that a certain level of dynamic sensitivity is a necessary prerequisite for consciousness .
- Subcortical Involvement: The necessity of brain activity is not limited to the cortex. Single-neuron recordings in humans have demonstrated that neurons in subcortical structures like the subthalamic nucleus and the thalamus modulate their firing rates depending on whether a stimulus is consciously perceived or not . This provides direct evidence that these deeper brain regions are also part of the necessary neural machinery for conscious perception.
A Note on the “Sufficiency” Question
The evidence strongly supports the brain’s necessity for consciousness, but this is different from proving that a brain, by itself, is sufficient . As one 1968 paper stated, the evidence suggests “its activity is apparently a necessary condition, [but] it cannot be a sufficient condition , of conscious experience” . The search results do not provide evidence for sufficiency and instead highlight the difficulty in explaining how neural processes generate subjective experience. Some perspectives argue that aspects like self-awareness may not be reducible to the properties of an individual brain alone, but may arise from social interactions and communication .
In summary, the necessity of the brain for consciousness is supported by robust, multi-faceted evidence:
- Causal evidence from localized brain damage that abolishes consciousness or specific conscious contents.
- Correlative evidence showing that the complex, dynamic patterns of brain activity are a hallmark of conscious states and are systematically disrupted in unconsciousness.
- Neurophysiological evidence from single-neuron recordings linking the activity of specific brain cells to conscious perception.
If you would like to explore the distinction between necessity and sufficiency, or the “hard problem” of consciousness, further, I can elaborate on those topics.
Actually, in a meeting of all powers that be yesterday, I was annointed 2R “research steward”. The white smoke has left the chimney! 2R research is now any damn thing I say it is. And I say 2R research is open to competing ideas about what 2R is - and any other topics anyone wants to bring up.
How about you just stick to what you claimed in the other thread?
When I challenged you in the other thread to explain the real-world benefit of 2PC you made this claim:
Let’s fix the goal posts to this claim you made. You’re right, we can’t agree on what’s important about this solution. So let’s not even try. Let’s make the prompt as focused and assumption-free as possible.
What do you find objectionable about the following:
Which of these two theories has a better chance of moving humanity towards a resolution to the metacrisis? Provide an impartial analysis of each of these two theories and a probability score reflecting the theories chances at succeeding in solving the metacrisis. Justify this score in as much detail as possible.
Ah. So we have now established that 18 months after 2R was set up, you have not even been able to agree about what 2R is. You don’t even recognise your own white papers as definitive.
Do you not even realise that by saying this, you’re just proving that everything I am saying about the “Big Tent”, and 2R’s permanent umbilical connection to postmodernism, is true?
2R cannot go anywhere, and cannot achieve anything at all, because the only thing which holds it together is a collective commitment to preserve the epistemic anarchy (the old paradigm). You are trying to dress postmodernism up in new clothes…clothes made of the finest cloth…it’s so fine, that fools can’t see it!
Please elaborate on that, so it is clear to everybody what it means. What exactly can’t you agree on, where disagreement is so bad that you don’t even want to try?
In your own words please.
I mean exactly what I said. We can’t agree on what sort of thinking is going to lead up to a solution to the metacrisis, and we don’t have to. I’m interested in results, not postmodern mud wrestling. If you believe what you said – that your theory can solve the metacrisis – then stop moving the goalposts. I agree to this being the bar we use. Now, either state what you don’t agree with in the prompt I provided, or continue dragging your feet.
Why are you ignoring the most important point?
Here it is again:
If you want to make this a fair test then we must start with certain baseline agreements as to the context. We need to agree on this:
(1) The “Second Rennaissance” is an attempt to foment a major cultural paradigm shift, capable of solving the Meaning Crisis as a pre-requisite for meaningful attempts to solve the metacrisis.
(2) We need a clear idea about what this paradigm shift entails, because we cannot just say the old paradigm is “modernism”. Clearly postmodern relativism is also a major part of the problem, because it is necessarily directionless and unable to build anything new.
(3) The old paradigm can be accurately described as “epistemic anarchy”.
(4) Therefore the new paradigm must conclusively end the epistemic anarchy, and provide a new foundation for knowledge which integrates, at least at the foundational level, science, philosophy, and spirituality.
Now, either state what you don’t agree with in the prompt I provided, or continue dragging your feet.
I am not “dragging my feet”. You are dragging yours though. Why can’t you respond to this?
If you cannot accept 1-4 above, then why can’t you just explain what the problem is?
Now, either state what you don’t agree with in the prompt I provided, or continue dragging your feet.
The prompt lacks the proper context. That is exactly why I am asking you why you can’t agree with 1-4 above.
Because you’re arbitrarily introducing a set of requirements into the discussion before you’re willing to submit to an impartial evaluation process. It’s really obvious what’s going on. If you believe your theory solves the metacrisis, show how.
You said “the prompt lacks the proper context”.
The prompt is intentionally simple in order to be free of bias towards a certain type of answer. The claim you made stands on its own. If it doesn’t, then move the goal posts again - but just be aware, this is visible to everyone. If you don’t think your theory actually solves the meta-crisis, and you’d like to revise your assertion, fine with me. Just provide the prompt that you would like to use. No use in agreeing before we agree. Stipulating this is just a slippery attempt to not submit to an impartial analysis of your assertions.
It’s getting hard to keep track of how many wild assertions you’ve made for which evidence is requested, and none is provided. Again, it’s pretty obvious who’s actually engaging in epistemic anarchy.
Just provide the prompt you’ll agree to, or stop the contortions.
Thank you for finally providing some references. Ironically, they support the distinction I have been making all along rather than the one you appear to think they do. The neuroscience demonstrates that particular brain structures are necessary for normal human consciousness. I have never disputed that.
What I asked was something quite different: What scientific evidence rules out consciousness existing independently of brains, or existing in simpler forms beyond brains?
Those are not the same claim. Even the AI you quoted explicitly states that the evidence supports necessity, but does not establish sufficiency, and that the hard problem remains unresolved. In other words, your own source is considerably more cautious than you are.
You regularly accuse others of “not following the science”, yet whenever research is presented that doesn’t fit your worldview - plant cognition, non-neural information processing, integrated information theory, panpsychism, field theories of consciousness, or simply the fact that the scientific debate is still very much alive - it is dismissed almost immediately.
Conversely, one AI summary that broadly agrees with your existing position suddenly becomes authoritative.
That isn’t following the science - that is following confirmation bias! 
Science is a continual attempt to challenge its own assumptions. The irony is that you frequently accuse others of dogmatism while presenting your own preferred framework as though the discussion has already been settled.
You also never engaged with most of the questions I asked.
You ignored the question about why consciousness should suddenly emerge only once brains appear, despite all life sharing common ancestry.
You ignored the question about gradients of consciousness rather than binary categories.
You ignored the observation that the scientific trend over recent decades has been to broaden - not narrow - the range of organisms exhibiting cognition or consciousness-like behaviour.
Instead, the conversation continually loops back to exactly the same assertion - that ‘brains produce consciousnes’.
For someone who repeatedly urges us to “take science seriously”, there seems remarkably little curiosity about where science itself still says, “We don’t yet know.”
Perhaps that’s the real difference between us. I ask questions because I assume my understanding is incomplete: you appear to begin from the assumption that yours is essentially complete.
I actually previously thought there was more in 2PC than I do now, because anyone who authors a theory with such a perspective is seriously incapable of considering, impartially, all evidence and to engage with a logical thought train. It is not even about being able to ‘join up the dots’, but being internally consistent. So what you’ve done - at least for me - is reduce the authenticity of the (parts of 2PC) that I considered to actually have value.
Hmm. So you can’t answer a set of the most basic questions about what 2R is, because I’m unwilling to submit to an impartial evaluation process of a theory designed to produce the exact paradigm shift 2R’s own white papers describe?
Why would these things have anything to do with each other? Why are you resisting so hard instead of responding to those four points?
Here they are again.
(1) The “Second Rennaissance” is an attempt to foment a major cultural paradigm shift, capable of solving the Meaning Crisis as a pre-requisite for meaningful attempts to solve the metacrisis. Do you agree or disagree? Explain your reasoning.
(2) We need a clear idea about what this paradigm shift entails, because we cannot just say the old paradigm is “modernism”. Clearly postmodern relativism is also a major part of the problem, because it is necessarily directionless and unable to build anything new. Do you agree or disagree? Explain your reasoning.
(3) The old paradigm can be accurately described as “epistemic anarchy”. Do you agree or disagree? Explain your reasoning.
(4) Therefore the new paradigm must conclusively end the epistemic anarchy, and provide a new foundation for knowledge which integrates, at least at the foundational level, science, philosophy, and spirituality. Do you agree or disagree? Explain your reasoning.
We have already had this debate. I am not just talking about “normal human consciousness”. I am talking about all kinds of human consciousness we have any rational reason to believe in (so I am not including people who claim they are directly conscious of the existence of Jesus, God, angels, spirits in the afterlife, aliens, etc…), and also all animal consciousness (including bat consciousness, which we cannot imagine).
That is just “consciousness”. It’s not “normal consciousness”. It’s the only kind of consciousness we can even conceptualise. What do you think “abnormal consciousness” is? And specifically, how do you justify the use of the word “consciousness” to describe these abnormal forms of consciousness? What is the common feature that makes all of them “consciousness”?
I actually previously thought there was more in 2PC than I do now, because anyone who authors a theory with such a perspective is seriously incapable of considering, impartially, all evidence and to engage with a logical thought train. It is not even about being able to ‘join up the dots’, but being internally consistent. So what you’ve done - at least for me - is reduce the authenticity of the (parts of 2PC) that I considered to actually have value.
That is a rather poor attempt at psychological manipulation.
I don’t agree with 100% of this, but it’s fine if you want to use this as the basis of an evaluation. So go ahead and offer your prompt.
Which parts don’t you agree with, and why?
And why is it so difficult to get a straight answer to these basic questions?
You ignored the question about why consciousness should suddenly emerge only once brains appear, despite all life sharing common ancestry.
I haven’t ignored that at all. I have repeatedly answered it, because it is the pivotal mechanism in 2PC. It is the phase transition itself.
Why would I ignore an opportunity to explain the basic mechanism at the heart of the whole system? And why, having repeatedly answered that question, are you saying I ignored it?? Why, after all this time, do you still not understand the most basic elements of 2PC?
The Embodiment Threshold | Two-Phase Cosmology
The Embodiment Threshold
If you have got a two phase model of cosmology and metaphysics then a new critical question arises. What defines the transition from Phase 1 to Phase 2? What qualifies as a brain? What could be so special about a brain that it triggers or enables a fundamental change in the structure of reality?
If this model is correct, then just as life must have emerged from nonlife, conscious life must have first emerged from unconscious life. These two transitions differ in kind. Life is a process, not a thing, and its beginning was a continuum from chemistry to biology, not a single event (although there must have been multiple critical events along the way). The boundary of consciousness, as it has been defined here, cannot be this blurred. You cannot have half a consciousness or be half conscious; if you are “half conscious,” then you are, by definition, conscious. Somewhere in evolutionary history, the first organism crossed that metaphysical line, and for the first time, the universe experienced itself from within.
Essential background information:
The storm metaphor for consciousness
Self-models and the unity of subjectivity
Why we need a threshold
The existence of a threshold of this kind does not depend on any specific theory of mind or interpretation of quantum mechanics. It follows directly from a simple logical necessity: either consciousness has always existed, or it appeared at some point in the history of the cosmos. There is no coherent middle ground.
We began with whether brains are necessary for consciousness, now we’ve moved to defining consciousness itself. Very well!
There is no universally accepted scientific definition of consciousness. This is not my opinion - it is one of the defining characteristics of consciousness research. Philosophers, neuroscientists and psychologists continue to debate it. Some define consciousness as subjective experience (“what it is like” to be something). Others distinguish phenomenal consciousness, access consciousness, self-awareness, sentience, metacognition, or global workspace dynamics. Others focus on integrated information.
My own working definition is modest: consciousness refers to there being something it is like to exist as a system. The richness and complexity of that experience may vary enormously. Human reflective consciousness is one expression of it, but I see no compelling reason to assume it exhausts the category.
Which brings me back to something that has puzzled me about your position. You’ve often argued elsewhere that reality is fundamentally relational; that emergence matters; that interconnection is the language of existence; that systems are dynamic rather than static.
Yet when consciousness is discussed, everything suddenly becomes binary. Either conscious or not… brain or no brain. A sharp categorical boundary! Why??? Nature rarely gives us neat binary categories. - ask evolutionary biologists to identify the precise instant when chemistry became life, or go to a developmental biologist to identify the exact moment a collection of cells became an organism. Maybe you could go and find an evolutionary taxonomists to point to the precise instant one species became another, or partake in a quest to locate a real physicist who knows exactly where a wave becomes a particle in every context. Good luck on that one.
My point: these are all processes, not switches. If emergence and relationality genuinely underpin reality, why should consciousness alone be expected to appear as an abrupt on/off property instead of as another emergent continuum?
The irony is that throughout this discussion I’ve been asking questions and proposing hypotheses. You seem determined to provide answers to questions that the field itself still regards as open.
I am genuinely sympathetic to the stance of, having invested a great deal of time in something, being wrapped up in trying to defend it. I don’t hold this against you. The point is to at least consider, if only momentarily, possibilities that your theory may have pre-emptively shrugged off or discarded without proper exploration. And I don’t understand how any theory cannot be modified and improved - even if one element is wrong, or partially wrong, that should not eradicate the entire structure. I’d encourage you to think about that, otherwise you will always be in defensive mode.
Because it’s not a prerequisite for actually running the evaluation we have been discussing. I’m not going to accept this framing because it’s another transparent attempt at moving the goalposts. These points can only matter insofar as they contribute to the prompt we’ve been discussing. You’ve failed to even suggest a prompt, so it’s pretty obvious who is engaging in epistemic anarchy. Simply suggest your prompt.