A commune is an organized living community. The people living in the commune are all friends, family members, people you know and trust. There are rules, bylaws that everyone welcome to the commune agree on. All living expenses and duties are shared enabling everyone to live a simpler life for a fraction of the cost.
The reasons for forming a commune are increasing. More and more people, less and less jobs and resources, rising costs, decreasing wages and benefits, more and more security threats. The world is becoming a more difficult and dangerous place to exist. It's not going to get better, it's going to get worse. There are smarter or harder ways to prepare for the future. A smarter way is cutting expenses, pooling resources, teaming up with people you know and trust.