There is one, and only one solution to this problem, assuming the problem is valid, and that solution is to have genetic archives where hundreds of identical copies are stored of the same set of several billion genomes, and then print those every generation,https://twitter.com/mfckr_/status/922684315439333376 …
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freezing the human genome at a certain (current) level of evolution. The mechanics of this are identical to the mechanics of designing self-replicating probes. Isaac Arthur has a video on self-replicating machines where he talks about how mutation can be halted.
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The link to that video at the time index where he talks about preventing mutation is here: https://youtu.be/V-96C4ExhWM?t=428 … If humans switch to a system where billions of genomes are stored with multiple copies of each in an archive, and most people are produced through
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artificial gestation, then the continuous production of "clean genomes" counteracts the effects of decay. Granted, you have dramatically slowed the natural evolution of the species, and you are basically printing the same set of human beings over and over, but
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it is possible to accurately store information without significant decay over the course of millions of years. Even 20 copies of the same piece of information, with every copy compared to every other for accuracy, slows the rate of mutation to astronomically low levels.
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Ideally this process would be imported into the genome itself, so that instead of XX and XY humans would become XXXXXXXXXXXXXXXXXX and XXXXXXXXXYYYYYYYYY, with every chromosome compared to every other and defects corrected within the cell, but that is a level of genetic
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technology that goes way beyond the present. But it can be solved with an archive.
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