There's a first time for everything, and an end to most things. The roman empire lasted hundreds of years, and then it ended. Many empires did. The sun will end too, at some point. Ice ages last for thousands of years, then they end. And there are countless other examples.
"X has lasted a long time so it will last more" is so obviously wrong. Think about it for more than 3 seconds.
I wonder why they put that "theorized" word in there. It would be so much easier to say "it is a phenomenon". Only that sentence would not be true now would it?
Come on. The wiki article just connects a name to an explanation, does not prove or even claim the effect is real.