Cultural diffusion has increased immensely over the past few centuries, especially in the 20th century, as communication and transportation technologies advance

Cultural diffusion has increased immensely over the past few centuries, especially in the 20th century, as communication and transportation technologies advanced at incredible rates. The barriers that allowed so many different cultures to develop independently have been greatly reduced. Entropically speaking, strong mixing is expected with the barriers gone. It's very interesting. I wonder how human culture will continue to evolve over the coming century.