Who wrote the Vedas? (no replies)

I have a question on who wrote the Vedas. But before that, some background.

Some years ago, Harvard geneticist David Reich and many other researchers wrote a highly influential paper entitled “The Genomic Formation of South and Central Asia”. [www.biorxiv.org]

This paper outlined the complex ancestry of modern South Asians;

• AASI (Ancient Ancestral South Indians): Indigenous hunter-gatherers of South Asia (~65,000 years ago), with genetic links to modern isolated groups like the Andaman Islanders

• Iran Agriculturalists: Early farmers (~9,000 years ago) from the Fertile Crescent, contributing to the Indus Valley Civilization.

• Indus Periphery: A mix of AASI and Iranian Agriculturalists (~5,000–4,000 years ago), representing the Indus Valley Civilization.

• Steppe Pastoralists: Migrants from the Eurasian Steppe (~2,000 BCE), linked to the Yamnaya culture, who introduced Indo-European languages and shaped northern populations.

One question that I have is which of these groups wrote the Vedas. Conventional wisdom says that the Steppe Pastoralists brought the Vedas with them. I have my doubts. I think that the Vedas were written by the people of the Indus Valley Civilization (Indus Periphery). What do you all think?