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  • $\begingroup$ Not so sure they can repair the platform well enough though, they could patch it up but I think after a 50-100 floods it might become unstable. $\endgroup$ Commented Mar 9, 2017 at 22:00
  • $\begingroup$ I assume the original technology that was used to set up those platforms is not lost. If they can't repair, they should replace. $\endgroup$ Commented Mar 9, 2017 at 22:11
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    $\begingroup$ @Alexander There is a difference between knowing how to cut and stack stones, and being able to get underneath a massive city-sized construction which has some elements tilting with subsidence or irregular erosion. The difficulty in accessing the lower stones, much less working around the water table and dealing with the enormous weight bearing down on them from the truly gargantuan construction on top of it... this would be a serious engineering challenge even for modern construction. $\endgroup$ Commented Mar 10, 2017 at 13:58
  • $\begingroup$ @pluckedkiwi - if that is the case, then yes, but I would consider that a fatal flow in design. City should be constructed in a way that each stone block can be serviced individually. $\endgroup$ Commented Mar 10, 2017 at 17:06
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    $\begingroup$ @Alexander they would need to deconstruct whole sections of the city to excavate the lower base stones. Remember, this platform is to be stacked so high it is at least 20 meters above the level of the surrounding soil (to say nothing of how far down it needs to go to be stable) - that is a lot of courses of stonework. Think about trying to fix some of the stones of the bottom layer because the muddy ground under it has been shifting a bit, when that bottom layer is under 25ish meters of stonework. I suppose you could just keep reshaping/releveling the top and hope nothing collapses... $\endgroup$ Commented Mar 10, 2017 at 21:58