Too Long; Didn't Read
Some things in the world have to be authoritatively "true" - the principles that you follow depend on those to be "true," and without that, everything can fall apart. The paradoxical principle of not being bound by principles serves the Elric brothers' well ultimately due to the nature of their quest. The Elrich brothers also hit these repetitive walls; one can even those events as a "loop" of their own. Real-world replay would be excellent where feasible; else, build a virtual setup and teardown of issue's environment.