Jokes aside (if such a thing is possible) I have wondered about this before. Knocking out the Internet, on a significant scale, would likely have catastrophic effects at this point, wouldn't it? Aside from the obvious annoyances (people are glued to social media etc) there are so many systems across the board which are dependent on such connectivity. If there was a short "blink" that is one thing - but what about an extended shortage, say an entire day or even a week, across a large part of the world? The longer you go, the more parts of everyday life would be affected. It's fascinating to consider, and I am sure people much smarter than myself have thought long and hard about it before.