It may be possible someday to erase bad memories. In man's ongoing quest for progress maybe it is left to medicine now to erase such memories (click here).
Some congregations in the 80s and 90s and even today have tried something similar by omitting any mention of "sin" in their services and by changing the same divine-centered services using methods more suitable for man-centered entertainment.
Do we as individuals and a society no longer have time to consider history and learn from the past? Ought we jump on board with everything that comes in the name of progress and which proposes a bright future, only to forget meanwhile the very substance of the faith?
Whether or not such "advances" in medicine are even possible, this seems to be another example of treating symptoms that arise out of the deeper malaise called sin. This is treated with what the fathers called the "medicine of immortality."