... 5 exabytes: all the words ever spoken by human beings. ... 6 exabytes: information in the genomes of all the people in the world. Don't we need better definitions of all these different in-formations? s. References: http://www.sims.berkeley.edu/research/projects/ how-much-info-2003/execsum.htm#paper http://math.ucr.edu/home/baez/information.html