I know my answer probably won't be very satisfactory to you or anyone else, but can anyone on earth truly explain how their personal philosophy brings hope where no evidence for that hope exists? In other words, I'm intellectually honest enough to admit that I don't know the answer to that question but I take comfort in the fact that no one else on earth does either. (despite what religions or charlatans or "spiritualists" claim to know based solely on their subjective opinions and feelings with literally no observable or measurable ways to prove their claims true or false or actually hopeful in any ways, except maybe as a placebo, aka self-deception, that tricks our brains into comforting them in spite of all indications that we are not as healthy as we believe we are and that death is most likely the complete end of each of our conscience existences) Of course, I would love to be wrong but then that just makes things even more complicated (I prefer simplicity since I'm a simple man) because then it just begs the question of which hope for the long term will actually happen, yours, mine, some other humans or some god or higher beings, etc.

Bottom line, I believe that hope is something temporal and as long as I exist in time and space, I will have hope for my future, but beyond that, I have no idea and that may not be a comforting thought to me or you, but whoever told us that the universe/nature/reality had to conform or to obey our desires, hopes or dreams, was probably selling something or wanting to control our lives and futures in one way or another. I prefer freedom, even if that means total uncertainty about my or anyone else's distant future. I believe in living in the here and now and loving the humans I can, in the here and now. The distant future and everything in the past are both things out of my control so I only focus on what I can control. (my brain and interactions with the world and people who are directly in front of me) My only actual hope for that far in the future is that humans will still be around in one form or another and that their lives will be just as good, but hopefully much better than ours have been. :)

I could go on all day about this subject, but unless you want to know more, I won't keep rambling on. hahaha Feel free to ask any specific follow up questions and I will try my best to answer them. Peace! :)