You could have technology developing, especially weapons. And so not only would that tribe or that group be able to get higher density, but they would be able to defend their property. In fact, they would probably care a lot more about property because they use it to farm versus hunter-gatherers might just view that as their territory that they wander over in order to find food. Now, whatever the actual cause of the birth of agriculture, it has had profound implications on our society. You would not have had the birth of city-states without agriculture. City-states had high-density populations. They could not have been supported with hunter-gathering.