The images that appear on social media – happy people eating, cultural happenings, and smiling dogs – can actually predict the likelihood that a neighborhood is “healthy” as well as its level of gentrification. From the report: So says a groundbreaking study published in Frontiers in Physics, in which researchers used social media images of cultural events in London and New York City to create a model that can predict neighborhoods where residents enjoy a high level of wellbeing — and even anticipate gentrification by 5 years.