How can Christians navigate the digital public square?

My family lives just outside of a small town in Tennessee with a historic downtown district. Like many small towns throughout our nation, we have a downtown square that serves as a hub. In prior generations, these public squares were gathering places for everyone. People regularly traveled in from the outskirts of town to shop, eat, and do business. They would also come together for community events and to freely engage with one another. While many historic downtown public squares have been aban...