We made the world a smaller place, and we are still seeing the effects, 60 years later. Dr. B argues that an equilibrium can never be attained in a system with more than one growing part, and we will never see the end of the consequences. They will continue to grow, to multiply.
The machines let you project yourself fully to up to three other places simultaneously, which was great for both presidential candidates holding speeches and protesters clamouring for social justice.
B points out that we still have not, indeed we will never, forget the tyranny of Genghis Khan.