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It could be unprecedented on 100-1000 year timescales, and still be within geologic norms.

Just trying to categorize this event relative to e.g. Greenland ice sheet melting.

Reading this thread got me to pull up a map and notice the Mohenjo-Daro site[0] is evidently being damaged by the current flooding, particularly in excavated areas[1]. It would appear that in the 1960's there was a flurry of publications arguing about the idea that perhaps the Mohenjo-Daro civilization declined precisely because its cities had been destroyed by catastrophic floods. There's a lot to read, but I found this article[2] from 1965 that goes into a lot of detail about studies of flooding in the area, and mentions some of the research of the time.

[0]https://en.wikipedia.org/wiki/Mohenjo-daro

[1]https://odishatv.in/news/international/pakistan-floods-damag...

[2]https://www.penn.museum/sites/expedition/civilization-and-fl...

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