nothing to say - the fear for silence

most people feel fear for silence - that my assumption since a long time
i cant believe there can exist this need to shout out on TV , on the newspapers, on the magazines, on the Internet, on the roads...
the reason must be that people are afraid to face silence
have you ever met someone new to you? and experienced this need to say something: that was to avoid an annoying feeling of being unconfortable with him/her...
now i consider this quite normal
but...
do we really always need to say something? also when that's not strictly necessary?
i was thinking about TV: it's full of meaningless shows -> is this 'cause the audience is so wide that you need to address also stupid topics or 'cause finally there nothing to say?
choose a news spot: doesnt it ever occurred to you to think 'what the hell are those guys talking about'?
i d suggest to practice silence, and to listen to nature
try walking at night when no noise are around (talking for those of you living in a city like me):
you will discover that the sound of your feet on the road can remind of your individuality...