A single grain of sand is almost nothing: a splinter of rock, a miniscule fragment of a geological formation, the residue of a microcosmic event. Myriad grains together, however, become almost everything: mesmerising landscapes, vast deserts, a fluid material capable of being transformed into solid structures, and, ultimately, flourishing cities. In aggregates of sand, interlocking angular quartz grains, we find fascinating forms and emergent patterns; possibilities, potentials, substance. In short, we find a constant unfolding of interactive opportunities (Balmond 2002).