Re: Atheist In A Foxhole
Posted: Sun Dec 07, 2014 3:02 am
We do know what cognition is, or at least we have a fair idea of how it works. And since we do know there's an objective world, something outside our minds (as you have made explicit in your statement about what "we do know"), there's more to the experience of death than our own personal consciousness of it.uwot wrote:In which case, I would be a light bulb behaviourist. The point I am making is that we don't know what consciousness is. We do know that there are no examples of any consciousness that is not generated by a living brain, but then it is only by observing the physical behaviour of other beings that we infer something similar to the experience we have of our own consciousness.
I'm a bit confused here. To my knowledge, PET and MRI scans are just imaging methods, which use some type of radiation to reconstruct an object, in this case, living tissue. An analogy can be made with a sonar or a radar, with which you can reconstruct the shape or position of objects. That doesn't mean we are capturing and measuring a signal emitted actively by these objects, we're just capturing their passive response to our measuring device.uwot wrote:On the other hand, we can measure the fields generated by living brains at a distance, using various scanning techniques, such as PET and MRI.
Your supposition contradicts our empirical observations. If there were such fields measured with PET's and MRI's, wouldn't it be easy to know whether they continue or not after we die?uwot wrote:In the terms of the analogy, we don't know whether consciousness is the electrons being forced through a tungsten filament, or the light thereby generated. Our own experience of consciousness, mine at least, is not of billions of disjointed physical events, but a (sometimes) coherent whole; more like the emergent light, then the jostling electrons. It is fanciful, I know, but the former is entirely consistent with the current understanding of physics; in which case, no laws are being broken by supposing that just as stars are visible to us that are long since dead, the field generated by our brain continues long after we die.