I don't think immortality is necessarily the key to understanding the world. You have to be careful with what you think you're achieving. I'm all for science discovering amazing and fantastic things about our world but I think the motivations behind it are slightly askew.
If Jesus Christ was who He claimed to be and He did die on a cross at a point of time in history then for all history past and all history future it is relevant because that is the very focal point for forgiveness and redemption.
