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Is it possible to modernize ISS, replace parts one by one and it will still work, or is there a set of components which can't be replaced and will therefore come to a non-extendible "hard" end of life due to physics despite of any plans?

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    $\begingroup$ Is pimping a common technical term in the space industry? Extravagant decoration seems more, y'know, extravagant when you have to load it all onto a rocket and fly it into orbit first. $\endgroup$ – Starfish Prime Nov 27 '19 at 15:17
  • $\begingroup$ @StarfishPrime I was ironical sorry $\endgroup$ – J. Doe Nov 27 '19 at 15:19
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    $\begingroup$ Given what constraints? With unlimited money and time anything could be replaced. $\endgroup$ – Organic Marble Nov 27 '19 at 15:23
  • $\begingroup$ @OrganicMarble so could you safely split up ISS safely in two sub stations and replace a part in the middle? then the answer to this question is probably yes. $\endgroup$ – J. Doe Nov 27 '19 at 15:26
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    $\begingroup$ Personally, I believe the wisest way to refurbish ISS would be the Theseus Boat approach. Replace it whole, module by module, migrating equipment that's "still good for a long time", and ditching shells of old modules. $\endgroup$ – SF. Nov 27 '19 at 16:09

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