I have a pretty mechanistic view of life. Human beings are merely another variety of life that happened to evolve on earth. If we could rewind the videotape of life & replay it, the chances that the human species would again come to be are vanishingly small. Anthropologists tell us 99.5% of all of the species that have ever existed are now extinct. So there is really very little reason to think that this will not happen to Homo sapiens as well sooner or later. Time is simply another "veil", so to speak, over the eyes of human beings, a construct of the brain, as is how we imagine ourselves to be living on a flat surface when in fact the earth is round. Yes, the concept of "now" is elusive. But, for me, there's nothing mystical about it. It's just another "outgrowth", if you will, a construct of the brain, that results from the fact that, for a brief time, we exist.