These represent the number of pieces of plastic put in the ocean every hour. Jordan's piece is meant to make viewers think about their plastic consumption, and how this affects the world at large. By showing how much plastic enters the ocean (merely per hour), this ecological problem becomes tangible and personal, and hopefully effects change.
The identified part represents an open string!:)
<span>you wrote for whoever would pay you (economic factor) </span>
Accent fall on a strong beat. If it’s a weak beat it’s called syncopated.