On the flip side, if recollecting past behavior is a problem then predicting future behavior can be just as bad. Our minds are victim to impact bias which is the tendency for our prefrontal cortex to not simulate future situations as well as we think it can. If asked where we will be in 10 years many of us may see rose-tinted futures but fail to remember that mundane activities like paying bills, sitting in traffic and buying groceries will also be a part of that idealized future. Another example is the difficulty people have appreciating the impact of compound interest and the role it plays in debt as well as investing. People see the here & now and fail to appreciate the full impact of their decisions across time. Visualizing your future with data helps to ground your future visions in reality.
To help make new or better decisions it is nice to have an impartial record of our behavior that might steer us towards the best (and possibly different) future course of action other than the one our brains may have imagined on their own.