No one asked, and not exactly on topic, but I'd like to throw in my $0.02 towards our culture having a slightly less unhealthy relationship with death.
The essence of it is this: No one suffers over how they don't exist on, say, the top of Mount Everest right now, or the bottom of the Marianas trench. They also don't worry about how they didn't exist in the 12th century in Madagascar, or on the surface of Mars one million years ago. No one worries that they don't exist in the center of the Sun, or on the surface of some star in some other part of the universe. There is an almost infinite number of places and times that I currently don't exist at. I think that death is like that. There is no one to worry about anything, just like you weren't there to worry about anything before you were born.
I went to a junior college that I spent time at years ago, and, being in the physical location made it easy to place myself in the mental space I was at then... The person I was then, the things that were important then, everything, all of it, are now gone. I have memories of that time... some sad, some happy, some bittersweet. But the person I was then is gone, no longer exists in any real way. It's easy to get swept up in those memories and the emotions, but, if I focus on what's going on in the present moment, then it's clear that none of that exists any longer (at least not outside my memories). And that's a good thing! It frees up the present moment for doing new things, for becoming someone else.
I'm not trying to get all nihilistic "nothing matters", and I'm also not all New Age "everything is going to be perfect". There are real problems in the world, and some seriously f*cked things happen. But working on real problems is hard enough without dragging a bunch of anxiety over fantasies into it.