Interesting stuff! I saw the dawning of industrial computing in the power industry in the seventies. We were always a bit behind tech wise due the build time of large power plant.
Had to look up PB I only know up to Terra! 1 petabyte = one million Gigabytes.. Scary stuff! Giga = 1000 million.
It will be all right in the end. If it isn't all right yet, then it is not yet the end..