Cosmic Variance does neuroimaging of times past and imagined futures:
Because of the growth of entropy, we have a very different epistemic access to the past than to the future. In retrodicting the past, we have recourse to “memories” and “records,” which we can take as mostly-reliable indicators of events that actually happened. But when it comes to the future, the best we can do is extrapolate, without nearly the reliability that we have in reconstructing the past.
Abtruse Goose strings together some poetry (but without apology to ST Colridge, it seems)