[ordu]

Well... I believe that the illusion is a real thing, but a lot of people started talked about it also may be a real thing, and they could happen at the same time. But there is one more piece of the puzzle: probability to learn something raises when people start talking about it. And when it happens to someone there is one more person to talk about it, so it is a chain reaction. So if you learned something recently on Internet, and now you see people talking about it everywhere, then it is probable that the most of people talking are like you, who just learned about the thing recently.