Taken as a combined proposal, I think these two videos create a phylogenetic field of possiblity.
A dense cloud of floating piezoelectrical generators could capture the waste energy of East span Bay Bridge pile driving, for example, at the same time alleviating construction-related noise pollution; a network of intelligent photovoltaic balloons could not only follow sunbursts from one side of the city to the other but shade festival-goers in Golden Gate park.
//J Austin
