When we think of events in the distant past or distant future we tend to think abstractly about why they happened or will happen, but when we think of events in the near past or near future we tend to think concretely about how they happened or will happen.

Seeing in time is like seeing in space. But there is one important difference between spatial and temporal horizons. When we perceive a distant buffalo, our brains are aware of the fact that the buffalo looks smooth, vague, and lacking in detail because it is far away, and they do not mistakenly conclude that the buffalo itself is smooth and vague. But when we remember or imagine a temporally distant event, our brains seem to overlook the fact that details vanish with temporal distance, and they conclude instead that the distant events actually are as smooth and vague as we are imagining and remembering them.

Daniel Gilbert, on the difficulty of predicting future happiness. (#)