- last post: 01.01.0001 12:00 AM PDT
This is probably not an original theory, but read it and tell me if it's not.
When Cortana/Gravemind says "This is the way the world ends" It could just mean Earth and not everything. Humans live on other planets besides Earth too. Perhaps in the end, Earth will be destroyed, but it's not the only human controlled planet. When you can roam the entire galaxy, one world does not mean much.