Even separate cultures have converged to a massive degree. For example, most people in the world, nowadays, send their kids to school and use smartphones. And

Even separate cultures have converged to a massive degree. For example, most people in the world, nowadays, send their kids to school and use smartphones. And even though Putin, Xi and Western leaders may not be friends, they wear basically the same professional attire. 200 years ago, there would be much fewer common cultural traits.