Here are some evocative words about mapping from an unlikely source: in her astounding and engrossing book Wolf Hall, Hilary Mantel has Thomas Cromwell say:
But the trouble is, maps are always last year's. England is always remaking herself, her cliffs eroding, her sandbanks drifting, springs bubbling up in dead ground. They regroup themselves while we sleep, the landscapes through which we move..."
Lovely stuff! and a great holiday read (or re-read, or re-listen). It reminds us that mapping is a continual effort, a continuous process. All that we map changes: crops are harvested and fields are replanted, cities evolve, forests burn and re-grow, and people move across the face of the earth leaving traces. Our task is to capture in virtual space the key functional elements of space and time - through maps, through spectral reflectance and lidar, through text and discussions - so that we can find answers to to the key questions facing society today.
Excerpt From: Mantel, Hilary. Wolf Hall. Henry Holt and Company, 2009. iBooks.