The Evolution of Population Genetics

When work on this book began six years ago, we did not know who were the people of the Harappan civilization or where their descendants had gone. But now we do. These are just a few examples that demonstrate our rapidly improving understanding of prehistory and not just with regard to India. And I had absolutely no idea all of this has happened till I read your book, to be honest. So tell me a little bit about what has happened in the science.