Atheist and agnostic views on reincarnation and consciousness

Archer Opterix's Belief-o-Matic thread got me thinking again about consciousness and reincarnation.For those who are materialists and believe consciousness is a by-product of matter, I have a question:The feeling of time passing only occurs when we are "conscious"; it seems to me to be the most salient feature of consciousness. When we die, if we lose consciousness, we will also lose our sense of time. Is it possible, then, that death is simply an instantaneous blip until we regain consciousness? We may lose our sense of "I" in the process, we may start again... but the only way time can pass is if we wake up again.I guess my question is, is reincarnation a consequence of pure materialism?A second question relates to the nature of the "I". Seems to me "I" is a basic memory function as well as a sensation. "I" is complete only with a memory of what "I" am, and the feeling that "I" have an identiy, that "I" am "I".When we die, we lose our sense of time. Is it meaningful to say that we become another consciousness? "I" would be unaware that "I" was different; "I would naturally feel identity in a different body.I can't make sense of it at the moment. I can't understand the materialist view of consciousness. If the "I" were so fleeting, was a product of sensory-motor experience, then the more similar we are, the more we share consciousness. Seems identical twins would share consciousness in a way that wouldn't make sense to me or you--would they be able to perceive things that didn't flow through the body containing their "I"?What a rambling mess. I was shooting for Faith & Belief, but if this needs to be "thrown to the dogs", then toss it into the Coffee House. And if I need to focus this post more... so be it.Edited by Ben, : Added "and consciousness" to the title.

I don't think you really addressed the question I was asking, so I'll try to ask it again:What attaches the "I" to a body or to some set of cells? Is the attachment done at the cellular level? At the neural network level? At the systems / input-output level?Unless you think that consciousness emerges from individual cells (seems unlikely to me), then consciousness emerges from something a bit more abstract. If it emerges from something more abstract, then there's no reason why it can't arise in a different time. And if you're not conscious of the flow of time during that intervening time, then ... what of it? You have infinite time to rediscover that.In the same sense, if consciousness is not due to having specific cells, but rather due to interactions of non-specific cells and input/output relations, then I don't see why consciousness could not be shared, why it is necessarily personal.I didn't feel your answer addressed any of this; just asserted your position. I'd be interested to hear your thoughts on what I've said.Thanks!

The instantiation of the structure is destroyed. What prevents there from being another instantiation? Seems to me that a materialist who believes consciousness emerges from structure is stuck believing that consciousness is not tied to only one specific hardware.

"I" includes both consciousness and memory. If we're saying the consciousness is based on the functional properties and architecture of the system, then two systems that have the similar functional properties and architectures should have "similar consciousness". How similar do they need to be to consider the consciousnesses the same?I'm not saying "I" will be reincarnated. I am saying that we don't seem to be thinking of consciousness as a property of individuals, but of systems. If you define consciousness functionally, then there's no limitation to the number of times the "same" consciousness arises or how many intances of the same thing you can have at once.What precisely is the argument that consciousness cannot be shared, cannot be discontinuous, cannot be instantiated in different physical systems with the same functional properties?

Not quite. I don't want to treat consciousness that "moves" from one place to another. Rather, if you have two systems that are physically similar enough to produce similar consciousnesses, I think we're obligated to call them the same--since for materialists consciousness seems to be is defined functionally.Then, this to me is along the lines of reincarnation, without memory of past experiences. Along the same lines, when you lose consciousness and regain it, your consciousness is in a sense 'reincarnated'. Consciousness need not be continuous.The "I" is not reincarnated (the "I" would be tied irrevocably to the body), but consciousness seems not so fickle.

I don't know. Usually when you define something functionally, things with similar functionalities produce similar results. I would guess that consciousness is graded, and that as you change the functional properties of the system, you get slowly diverging results.That's an assumption, but that seems reasonable to me.