The Test Of This World Started Because Of Mistake By Adam (swS)?
Moderators can guide you the best but what I have learned so far in this scenario from Ghamidi Sb is that the scheme of examination/test had already been planned by Allah when the creation of Adam took place. So, this world is not the result of that mistake, this view is widespread in Christianity. Rather that event that took place in Eden (Ghamidi Sb doesn’t consider it the actual paradise (Jannat)but a garden present here on this Earth) was just a part of the process leading to the examination and not the actual reason why all of humanity was born.