Scientists discovered years ago that the key to interstellar travel wasn’t star-ships, cryogenics, warp speed drives or wormholes as previously thought. Traveling two hundred and eighty six light years to the nearest habitable planet was deemed an impossible task through traditional mechanical means. Instead scientists discovered that the key to interstellar traveling was storing the biological data of interstellar travelers onto hard drives then sending that information into space using laser beams. Once the beams reached the host planet, the data was decrypted and stored so an exact physical clone of the traveler could be copied on the host planet using cloning technology.
Every atom of the occupant was scanned prior to their journey through space. Every neuron inside the human brain was successfully mapped. When the travelers were regenerated on the other side they were the exact physical copies of themselves on Earth. They contained the exact height, eye color, heart, liver, lungs as their copies. The memories were also successfully transferred through space through the configuration and mapping of their neurons within the human brain. The cloning machines were perfect and exact using every known metric.
When the first humans were scanned for human cloning, they believed they had achieved immortality. As long as their biological data survived, so did the possibility that they could be re-birthed again. Their lives would be lived forever. No need for God or the heavens, eternal life was to be found here on Earth. They would be reincarnated forever.
When the first human clones were built to populate the stars scientists discovered unexpected flaws that they had not anticipated. Though the clones were exact physical copies in every imaginable way, they had different personalities and mental traits that stood apart from their original copies. The clones lacked morality, ethics and a sense of the common good, so when they were produced on extraterrestrial worlds they were unable to cooperate with each other leading to their demise and eventual extinction.
Scientists tried many times to build colonies on different worlds, but the problems were always the same. The clones would end up destroying each other through war, treachery and murder. There was something that the scanners were unable to detect and clone in the human body. Every atom and molecule were of the same exact specification. They never discovered what it was. Even ten thousand years later they were still stumped