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YouTube is a perfect example of the evolutionary process. Everything that is non-essential is stripped away, leaving only viral videos and a long, unsorted list of meta-commentary that unravels like DNA. Like a disease from outer space, YouTube is free to grow stronger and more efficient every day, even as it bloats and distorts under its own weight.
YouTube is the freedom to watch, and to not think. It is better than tv because you get to "add value". It is evolutionary perfection.