Communication - Either our greatest strength or weakness

Communication, necessary for survival, Right? Well if it is, then all the money spent on communicating is definitely worth it. Most of the things we spend money on are communication based. We have a cell phone, home phone, internet, and television. What are all these things, forms of communication. I don't think communication is an absolute, but we like to communicate. All forms of entertainment are communication to one degree or another. The funny part about communication is, we can never really communicate everything we want. Instead of fully understanding someone else, we only understand what they are able to communicate with us. Communication is a system, with flaws, that seems to work very well.