So here's some things I've been contemplating.
A lot of times, I hear Christians say that the Earth is not their home, or that when they die, they'll go home to heaven. Or their pilgrims in a strange land. To me, that idea would make more sense if, based on the Bible, people had originally been created in heaven. But they were originally created in a certain section on Earth, and then kicked out to another part on Earth. So shouldn't Earth be their home, regardless? Or was it that Earth was the original home, and then when that got messed up by sin, home was relocated to heaven? But if heaven is where God is, and we were created to be in a relationship with God, why weren't humans originally created in heaven?
That, and let's say (taking the story literally) that Adam and Eve did everything right, and we were still living in Eden to this day. If they didn't eat of the fruit, then they didn't disobey God, and then wouldn't have introduced sin into the world. Without sin, you don't have death. So let us say that all the people who have been born over the last 6,000 years were still born in this sinless, deathless world. They'd never die. How would they all fit on the planet?