The great thing about "the plan" is that it can be whatever you want to justify your beliefs. It's an ever-changing set of goalposts. It doesn't matter how many times you were wrong in the past (and boy, some people are constantly wrong), there's always the next big thing to push out there.

The election was a great example of this. Every single day there was something new that was going to ensure Trump would actually continue to be president, and every single day, the thing before was wrong, a lie or simply failed to come to fruition.

When every single thing is a great conspiracy, nothing actually has to be true.