Is Movement Just Inherent?

People in the past thought that, you know, societies like the ancient romans, they would write about the census who lived in their cities. But now people are doing studies around the world, from messo america, the aztecs, the people who are living in north America,. All across time and across space, we're finding immigrants. And sometimes you couldn't differentiate them. You' a person who was born locally and a person who migrated into the town buried right next to each other... Is movement just inherent? It must be. We can go way back in deep time that all of us, all our families have a migration story, one that we don't think about