Michael Marcovici seems to specialize in art projects in which symbolic effigies of enormous amounts of countable things (money, time and... huh... Sangaku Kaizen soul stones) are stacked in illustrative ways. His Rolex exhibit takes 18 pallets of official Rolex brand time sand and stacks it into a human lifetime of 81 years, with each 30kg bag taking 30 days to pour through an hourglass.
The big puzzler for me: Rolex packages 30kg. bags of time sand? Who are they selling it to, short of Golden Age DC superheroes?