One must not have regrets while living, to do so is a waste of time, since we cannot change the past from the present. No wrongs cannot be righted in some form, though not always brought back and mended to the original intent. If there is a regret for not doing, then the logical response is to do. If there is a regret for having done something, then to reverse it you must act with equal or greater impact in the other direction. This becomes that regrets are now actionable and somewhat dispossessed of guilt.