A collection of interesting links covering topics from ancient Roman demographics to modern AI developments, criminal justice issues, and cultural oddities. Longer summary

This is a links post collecting various interesting news and articles. Topics include ancient Roman life expectancy data, Chinese censorship expanding to group chats, cruise ship pollution, AI developments like AlphaGo Zero, criminal justice issues around drug rehab work camps and police body cameras, and various other scientific, technological and cultural items. The post maintains a light tone while covering both serious topics like Puerto Rico's ongoing crisis and quirky ones like Viking reenactors and Halloween costumes. Shorter summary