a video shows a number of fleas jumping up and down in the lower 3/4 of the screen

a text on the wall from "Curiosities of Natural History" describes a Victorian method of training fleas

the title refers to astronomer Erwin Hubble's calculation of the distance between the earth and the edge of the universe (the ultimate horizon) - a distance of 20 billion light years, in flea-sized units

DVD 1min 30 sec loop (2006)