Those who believes in evolution knows. All they can do is assume, and so far their assumption of the beginning of life has been way off its mark. Briefly their assumptions about life's beginnings goes something like this:
Man came from monkeys, monkeys came fish, fish came from a single cell, the single cell came from swamp and no one knows where swamp came from. That is it in a nutshell. All the evolutionists can assume is that life ends completely when the last breath is taken and the brain ceases to function. They do not believe there is a soul or spirit involved with life. This is what is taught in school, right up to and including college. But there is hope at the end.
That hope is the same hope that was there at the beginning of life. That hope is God. He created the earth, plants and man. He create them with a soul and spirit. He breathed His living spirit into man so that we are made completely in the image of God, inside and out. That is our hope. The hope to believe that after this body's brain has cease to function, our spirit steps into the realm of God, our Hope. We will walk in another realm, we will live in another dimension, all because God has deemed it. What part of that eternity we will spend depends on the decisions we make in this life. So when we close our eyes for the last time, taken that last breath, and our brain shuts down, there will be no darkness. There will either the beautiful light of heaven or the ugly black of hell.
Evolution is for the imaginations. Life and death is for the realists. Unfortunately, if your belief is in evolution, there will be no darkness for you. There will be a tormenting light that you wish you could turn off. Eventually, though, that darkness will appear; but you won't know it, because you will forever be destroyed, hell and everyone in it for the rest of eternity.