Came across this from Tech Review. Researchers came up with memory storage method that may last up to a million or more years.
Related to that, if humans are to go to the stars, then methods like these would need to be developed in order to spread our civilization. If for instance, a ship-probe could be sent to nearby stars to seed human settlers there, one would need a memory storage that would last the journey, which could last millenia at current capabilities. Such data could be in the form of DNA sequences and the information needed for the probe to clone humans from those sequences. The probe would also need all the knowledge of earth's civilization and technologies and a way to raise the first generation of these new settlers at which point, they could keep the colony going (hopefully).
One issue I would wonder about is how cosmic radiation would affect the memory over long-term exposures affecting data stability. Although the near-zero temperature of interstellar space would keep entropy low which would help counteract this for long periods of time.
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