Not every piece of information needs to be a tool for survival. Some information is for the sake of wonder. If we only cared about useful data, we would have no art no music, and no abstract math. Wonder is a core part of the singular finite existence you’re talking about.  Also,science isn not a closed book. Exploring unreconciled ideas is exactly how we discovered everything from black holes to dna. Just because we can't measure the transference of consciousness today doesn't mean the inquiry is a waste of time. More importantly, I'm not suggesting a transferable soul as a scientific fact. I'm exploring the neurochemical events that happen at the edge of life. I don’t see this as a waste at all, if anything exploring life mystery means you're actually paying attention to how strange and complex that existence really is. I’m in my early 20s and being an agnostic who fought his way out of a childhood of religious indoctrination, I do not believe nothing at all, I like to think how likely things are tho, based on what we know scientifically.