Earth is far too unstable an uninteresting for me to want to live here forever. Before I made a decision to stay on earth, I'd have to know what Earth's future was. An if my freinds, family, an pets, could live there with me forever. If there was an afterlife that I could go to instead, that was better, I'd choose that. Although if there was no life after death, then I'd opt to stay on Earth. As long as my family, etc, could stay with me.