I'm not so sure that it is. I'm someone who experiences a lot of medicine and is completely reliant on it, so my view is different to the one that healthy peopl

I'm not so sure that it is. I'm someone who experiences a lot of medicine and is completely reliant on it, so my view is different to the one that healthy people get. We might have made some huge strides in the simple cause and effect in single processes in the body and be able to manipulate them in weird and wonderful ways, but our understanding of how they all interact to produce a functioning human is basically non-existent. The treatment of my condition (MS) and the development of drugs to try and control it is basically just throwing spaghetti at the wall... The immortality you talk about requires either: understanding what consciousness is and how we could move it from one physical entity to another without destroying it. or; Keeping the body that the consciousness exists in alive indefinitely. I think we're about as close to either of those as we are to visiting another star.