What if you could go back into your own past and watch scenes in the third person?

What would be different if you could experience a scene unbiased by your personal view, as the person you were then or the person you are now?

How much of what we actually remember, even of important events, is wrong? How much of our memory is wrapped up in who we were at the time and what we were personally going through?

Would knowing the objective reality of our personal past change how we feel about it? Would we treat people from our past differently? Would it change our future?