flâneur

Lou Pfau

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on the atlas — 12

highlights — 21

  • Identity Isn't In Specific Atoms, Three Dialogues on Identity:
    Quantum Mechanics and Personal Identity — LessWrong
  • The Born Probabilities: The last serious mysterious question left in quantum physics: When a quantum world splits in two, why do we seem to have a greater probability of ending up in the larger blob, exactly proportional to the integral of the squared modulus? It's an open problem, but non-mysterious answers have been proposed. Try not to go funny in the head about it.
    Quantum Mechanics and Personal Identity — LessWrong
  • Living in Many Worlds:
    Quantum Mechanics and Personal Identity — LessWrong
  • This is the basis for the suggestion that dreaming involves a reversed sequence of perceptual events. Instead of bottom-up it is top-down (higher levels activating lower levels instead lower to higher). Activation of the motivational mechanisms in the brain would normally be directed toward goal-oriented actions. However, during sleep access to the motor system is blocked (by inactivation of the dorsolateral frontal convexity). As a result, activation moves backwards toward the perceptual areas. This is why the dreamer doesn't engage in motivated behaviours but imagines them.
    Cognitive neuroscience of dreams
  • Furthermore, chemical stimulation of the pathway (with L-DOPA for example) increases the frequency and vividness of dreams without affecting REM sleep.
    Cognitive neuroscience of dreams
  • Their model posits that dreams are actively generated by the brain stem and then passively synthesized by the forebrain. That is, the cholinergic activation that occurs in any forebrain areas (via transmission from brain stem) results in attempts by the brain's cognitive areas to enforce sense or structure onto meaningless activation.[10] Cerebral areas were not thought to play any sort of causal role because REM sleep occurs as long as the pons is intact, even if higher areas are disconnected or removed;[6] an inference based on the assumption that REM sleep is dreaming.
    Cognitive neuroscience of dreams
  • While lesions in many places can cause disorders of consciousness, the thalamus is a common lesion site, as well as a network of fronto-parietal cortex sites known as the default mode network (which is typically active during self-related thought processes like mind-wandering and autobiographical memory.) In a meta-analysis of fMRI studies of disorders of consciousness, covering a total of 687 patients and 637 healthy controls, activity in the DOC patients was significantly reduced in regions within the default mode network, including2:
    Making Sense of Consciousness Part 4: States of Consciousness
  • Furthermore, animal research indicates that arketamine, the enantiomer with a weaker NMDA receptor antagonism, as well as (2R,6R)-hydroxynorketamine, the metabolite with negligible affinity for the NMDA receptor but potent alpha-7 nicotinic receptor antagonist activity, may have antidepressant action
    Ketamine
  • Within Lewisian modal realism, de re modality is analyzed in terms of Lewis’ distinctive and controversial counterpart theory. According to counterpart theory, ordinary individuals are not numerically identical or “bilocated” across possible worlds. Instead, possible individuals are worldbound, existing in only one world, and possess their de re modal properties in virtue of bearing counterpart relations to other possible entities. Roughly put, counterpart theory holds that an individual a is possibly F if and only if a has a counterpart that is F, where counterpart relations are relations of …
    Haecceitism (Stanford Encyclopedia of Philosophy)
  • What’s fairly simple and predictive to say above X=X is that a near-exact copy of you is similar to you. As you are similar to near past and future versions of yourself, as two prints of a book are similar, and as two world maps are similar. There are also directed properties (rather than symmetric similarity), such as you remembering the experiences of past versions of yourself but not vice versa; these are reduce to physical properties, not further properties, as in the theory of mind section.
    Unstable Ontology – by Jessica Taylor
  • halmers has discussed causal solutions; Jeff Buenchner has discussed computational complexity solutions (in Gödel, Putnam, and Functionalism), restricting interpretations to computationally realistic ones, e.g. not interpreting a rock as solving the halting problem.
    Unstable Ontology – by Jessica Taylor
  • Suppose there is no R-efficiently computable g (from which it follows that there is no P-efficiently computable g). That is, even given omniscence about ultimate reality, and polynomial computation with respect to the computation of reality (which is at least as strong as that of physics, perhaps stronger), it is still not possible to know all about minds in the universe, and in particular, details of the experience contained in a homomorphically encrypted computation. Mind doesn’t just exceed physics; mind exceeds reality.
    Unstable Ontology – by Jessica Taylor
  • If someone has chosen to become a zombie, that says something about their preference-weightings for experiencing emotional pain compared to having ability to change things. I am pessimistic about attempts to break people out of the path to zombiehood. Especially those who already know about x-risk. If knowing the stakes they still choose comfort over a slim chance of saving the world, I don’t have another choice to offer them.
    Choices Made Long Ago – Sinceriously
  • Memantine Hydrochloride 10 Mg Tablets,
    Alzheimers Medication - Memantine Hydrochloride 10 Mg Tablets,( Elimenta) Trader - Wholesaler / Distributor from Nagpur
  • Thus the claim is that when all these neuronal clusters oscillate together during these transient periods of synchronized firing, they help bring up memories and associations from the visual percept to other notions.[27] This brings a distributed matrix of cognitive processes together to generate a coherent, concerted cognitive act, such as perception. This has led to theories that gamma waves are associated with solving the binding problem.[20]
    Gamma wave
  • Elevated gamma activity has also been observed in moments preceding death.[
    Gamma wave
  • As Lewis (1986: 220–247) and Skow (2008) point out, however, World Indiscernibility is a misleading way to express haecceitism given certain views about possible worlds. According to ersatzist views, which identify possible worlds with abstract entities like sentence-types, properties, propositions, or sets, the truth of World Indiscernibility will turn, not on whether there are distinctively haecceitistic possibilities, but on whether such entities are qualitatively indiscernible from one another. (Qualitatively indiscernible entities share all their qualitative properties, while qualitative …
    Haecceitism (Stanford Encyclopedia of Philosophy)
  • Solomonoff induction, and similarly the speed prior, posit that reality consists of an input to a universal Turing machine (specifying some other Turing machine and its input), and its execution trajectory, producing digital subjective experience.
    Unstable Ontology – by Jessica Taylor
  • And in the case of \mathsf{Vect}, these imply the standard results: Linear maps between finite-dimensional vector spaces, with fixed bases, are uniquely represented as numeric matrices. The matrix representation of a composition of linear maps equals the product of the matrices representing these maps.
    Unstable Ontology – by Jessica Taylor
  • The upshot is that the direct sum is both a product and a coproduct. Let 0_{A,B} : A \rightarrow B be a zero function; since the direct sum also satisfies the identities \pi_1 \circ i_1 = id_U, \pi_2 \circ i_2 = id_V, \pi_1 \circ i_2 = 0_{V,U}, \pi_2 \circ i_1 = 0_{U,V}, by definition it is a biproduct. We can now abstract from the category \mathsf{Vect} to semiadditive categories, which are by definition categories with a zero object and all pairwise biproducts. Let C stand for any semiadditive category, with biproduct \oplus.
    Unstable Ontology – by Jessica Taylor
  • 70 years worth of data.
    Curius / Onboarding