I rarely see a destructive loop begin where people think it begins. It usually starts earlier, in the small permission, the private relaxation of standards, the thought you let pass because you do not want friction with yourself.

By the time the damage is visible, the loop is already rebuilt. Attention usually goes to the collapse instead of the doorway. That is one reason a loop can repeat while still feeling surprising.

I care less about the wreckage than the first quiet compromise. If you know one loop that keeps rebuilding in your life, where does it actually begin?