限界状況

Sometimes when you want things to go (as planned) as simple as:

A => B => C

Where C is a much better situation resulting from the transition of A to B.

But in the end, the situation goes like this:

A => B => D => E => F

It complicated for unknown reasons, deviated from the original course, caused a mass snowball effect and went for the absolute worse-case scenario – situation F.

Worst of all, there’s no procedure for:

F => A

or:

F => … => A

Great, just great.