THE SURVIVAL OF HUMANKIND
Imagine a universe whose force of gravity is one billion times stronger than today's. Human beings have detectable gravity fields. Stars are only a mile across and burn out within a year of their formation.
Centuries before these events, a spaceship accidentally crossed into this universe and promptly collapsed upon itself. Somehow the crew survived. They emerged into a cloud of breathable atmosphere. centuries later their descendants are still struggling for existence....
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