No. Because “going off the rails” often involves doing things that are observably irrational even by your own worldview. Like killing your parents and your landlord.
You can say: “this might make sense from their worldview! (soy)”
And the obvious response is: Yes. Because they’re crazy. Because they went off the rails.
You can also say: “But we’ll never know! Who can know? Nobody knows! Truth is subjective blargh”
And the again obvious response is: Yes, but we can observe patterns. And if you can’t update on this evidence and use some basic sense when this sort of thing repeats, you are not thinking clearly.
Super curious- are you willing to give a sentence or two on the take here?