Imagine that you want some advice from us about using AWS, and therefore, we plan to meet in a café. To make this meeting successful, we must:
The problem with making our meeting happing is that it’s tightly coupled to a location. We live in Germany; you probably don’t. We can solve that problem by decoupling our meeting from the location. So, we change plans and schedule a Google Hangout session. Now we must:
Google Hangouts (and other video/voice chat services) does synchronous decoupling. It removes the need to be at the same place, while still requiring us to meet at the same time.