Of course Cosmin Visan's brain doesn't exist given that only consciousness exists.
On Thursday, 24 April 2025 at 01:33:42 UTC+3 John Clark wrote: > On Wed, Apr 23, 2025 at 3:53 AM 'Cosmin Visan' via Everything List < > [email protected]> wrote: > > *>The brain cannot learn, for the trivial reason that brain doesn't exist. >> "* >> > > *You've managed to convince me that in specific cases your ever present > mantra, "X does not exist", where X is any noun adjective or adverb except > for consciousness, is actually true. For example: Cosmin Visan's brain > does not exist. * > > *John K Clark See what's on my new list at Extropolis > <https://groups.google.com/g/extropolis>* > > evc > > > On Tuesday, 22 April 2025 at 22:26:17 UTC+3 John Clark wrote: >> >>> *It has long been known that learning and long-term memories are >>> produced by the strengthening and weakening of synaptic connections between >>> neurons, called "neuron plasticity", but it has not been clear what >>> determines which synapses are modified during learning in memory formation >>> and by how much. Two articles in the April 18, 2025 issue of the Journal >>> Science cast some light on that mystery: * >>> >>> *Dendritic arbors structure memories* >>> <https://www.science.org/doi/10.1126/science.adx0640> >>> >>> *Distinct synaptic plasticity rules operate across dendritic >>> compartments in vivo during learning* >>> <https://www.science.org/doi/10.1126/science.ads4706> >>> >>> *It turns out which of the many dendrites that a neuron that receives an >>> input signal is important in choosing what rules that neuron will follow, >>> which in turn determines whether the entire neuron will fire or not. Some >>> neurons pay more attention to signals from nearby neurons while others find >>> distant neurons to be more interesting. And synapses in different parts of >>> the brain have different rules. This increases the information storage >>> capacity of a single neuron.* >>> >>> *William J Wright, the lead author of the paper says: * >>> >>> *“When people talk about synaptic plasticity, it’s typically regarded as >>> uniform within the brain, our research provides a clearer understanding of >>> how synapses are being modified during learning, with potentially important >>> health implications since many diseases in the brain involve some form of >>> synaptic dysfunction.”* >>> >>> * Takaki Komiyama another author of the paper says: * >>> >>> *“This discovery fundamentally changes the way we understand how the >>> brain solves the credit assignment problem, with the concept that >>> individual neurons perform distinct computations in parallel in different >>> subcellular compartments.”* >>> >>> *I wouldn't be surprised if AI scientists take note of this and make a >>> neural net in a similar way to see if that improves performance, but just >>> because nature produces intelligence in a certain way is no guarantee that >>> is the best way to do it. * >>> >>> >>> -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/d4c42cd4-2889-40be-a5a5-74bb2dc9b9e6n%40googlegroups.com.
