indus valley civilization dna

[sculptor]

5kyrs ago
the indus valley civilization(ivc) built many cities in the indus valley
The question is/was who were these people
why did their civilization fade

ok
part of that question has likely been answered via dna reconstruction
in climate conditions like the indus valley old dna degrades
however
recently the dna from a womaan who lived 5kyrs ago in the ivc has been (mostly) sequenced
her dna is present in most south asians
what was not found in her dna :

The genome also holds some surprises. Genetic relationships to Steppe pastoralists, who ranged across the vast Eurasian grasslands from contemporary Eastern Europe to Mongolia, are ubiquitous among living South Asians as well as Europeans and other people across the continent. But Steppe pastoralist DNA is absent in the ancient Indus Valley individual, suggesting similarities between these nomadic herders and modern populations arose from migrations after the IVC’s decline.

see more:
https://getpocket.com/explore/item/...h-asian-civilization?utm_source=pocket-newtab
and
https://www.cell.com/cell/fulltext/S0092-8674(19)30967-5
and
https://www.harappa.com/

it seems that no one can read their written language
yet

.................
your thoughts?