How Does Fire Cast a Shadow?

According to one of these scenarios, you could have a big rip in about 22 billion years. So what would a big rip look like? First, all the neighbouring galaxies would disappear. Then even our ga will be pulled apart. The force of gravitywill be defeated by the expansion of the universe. Even space time itself will be ripped apart. Not a nice thing, but hey, it's too far away in the future, if it ever happens.