What is "convergence" as Friedman describes it?

The first convergence was all ten flatteners coming together. They are all very important to the flat world but they couldn't flatten the world by themselves. They all had to merge in order to get full effect on successfully making the world flat. By coming together when one flattener grows other flatteners are effected and the world is flattened even more. The second convergence is businesses have collaborated horizontally instead of vertically. Companies and people have to mesh together, interact with one another, and interact with other departments, businesses and companies. Convergence number two changed the work force, it created new habits and changed the way businesses and countries work together. Convergence number three is when countries that followed a soviet plan opened their economies to the world. It added lots more intelligence to the leveled playing field and more countries and businesses started working horizontally across the world. This was a major flattener. When the Berlin wall fell 3 billion more people joined the flat world. These people are now aware of the new business world. Even though only a small portion of the new comers are of help, having so many people effects the way our politics and economies work.