If people's current mistakes (call them fails) tend to decline in importance in the future, does that make the people's current feelings about them invalid? Also, the person of the future does not pay attention to these mistakes (because they don't impact their life anymore), meaning they've changed perspective; why is it that we consider this future person to be capable of evaluating the situation? In other words, why is it that the voices/opinions of our current selves are more important than those of our past selves if what we're evaluating took place in the past?