Comment done regards technological capabilities that may enable self-sufficiency at high levels of technological capability, without the global supply chains, and hard to get components. Which may be useful in things like future off world colonies, and may be necessary for true self sufficiency of such colonies, and easing their rapid expansion in hostile worlds.
Realistically there are only two possibilities, and they may not be that realistic depending on who you ask.
1.) Hard nano or atomically precise manufacturing, molecular machinery unlike that seen in nature able to self repair, separate and recycle component at the level of atoms, similar to life but supposedly with more precision. I don't think this is possible outside specialized lab conditions with vacuums, probably requiring low temperature.
2.) Extremophiles have shown biology surpassing the limits biologists believed for life, some organisms also were able to synthesize unthinkable ultra reactive substances that would react with almost any internal cellular component and cause an explosive reaction, that is one rocket fuel ingredient.
Hypothetically, there may be a way to combine our advances in manufacturing and information processing with biology itself, molecular machines, through extremely advanced synthetic biology using unevolved and unevolvable molecular systems. It depends on the limits of advanced synthetic biology, but I wouldn't bet against it.
Requires intermediate step of mastering de novo protein design, and multicomponent molecular machines, de novo complex multicellular organisms. Once the science develops it may take years for hundreds of specialists to design living machines for specialized purposes.
That is eventually you would have living machines able to gene sequence, dna synthesize, advanced recycling, advanced manufacturing with nanoscale precision(as seen in nature but with novel materials not seen in nature), energy generation and storage, advanced computing and data storage, etc.
The machines would be designed to exhibit negligible senescence or agelessness, able to last indefinitely, the systems would be mostly self-enclosed, utilizing energy to self repair and recycle wastes. In some cases they could be fully self-enclosed exchanging only energy with the exterior environment.
Such systems should be able to take arbitrary raw soil or raw matter, and decompose it down, break it down to atoms and molecules, and utilize the materials to build other copies of themselves, for growth, and for self repair.
Realistically there are only two possibilities, and they may not be that realistic depending on who you ask.
1.) Hard nano or atomically precise manufacturing, molecular machinery unlike that seen in nature able to self repair, separate and recycle component at the level of atoms, similar to life but supposedly with more precision. I don't think this is possible outside specialized lab conditions with vacuums, probably requiring low temperature.
2.) Extremophiles have shown biology surpassing the limits biologists believed for life, some organisms also were able to synthesize unthinkable ultra reactive substances that would react with almost any internal cellular component and cause an explosive reaction, that is one rocket fuel ingredient.
Hypothetically, there may be a way to combine our advances in manufacturing and information processing with biology itself, molecular machines, through extremely advanced synthetic biology using unevolved and unevolvable molecular systems. It depends on the limits of advanced synthetic biology, but I wouldn't bet against it.
Requires intermediate step of mastering de novo protein design, and multicomponent molecular machines, de novo complex multicellular organisms. Once the science develops it may take years for hundreds of specialists to design living machines for specialized purposes.
That is eventually you would have living machines able to gene sequence, dna synthesize, advanced recycling, advanced manufacturing with nanoscale precision(as seen in nature but with novel materials not seen in nature), energy generation and storage, advanced computing and data storage, etc.
The machines would be designed to exhibit negligible senescence or agelessness, able to last indefinitely, the systems would be mostly self-enclosed, utilizing energy to self repair and recycle wastes. In some cases they could be fully self-enclosed exchanging only energy with the exterior environment.
Such systems should be able to take arbitrary raw soil or raw matter, and decompose it down, break it down to atoms and molecules, and utilize the materials to build other copies of themselves, for growth, and for self repair.
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