Evil Understood

I once read something about suffering that included the thought that, maybe, evil needs to be experienced to be understood. That does not make sense. To experience evil does not inform that person that it is evil. By itself, evil is just one more thing you experience if experienced alone. One may conclude that what was experienced is normal. If experienced by itself, one cannot place any moral judgment on evil. Evil is known as wicked only in context with good. Further, the greater one's experience of good the clearer that person's understanding of evil. Thus, it was not necessary for humanity to fall and thus experience evil. Knowing God in His goodness would give a much better understanding of evil than any experience of evil. And that is what the Tree of the Knowledge of Good and Evil was about. Adam and Eve would have had a clear understanding of evil by rejecting the temptation and clinging to the good God.