As a conductor of light beams, a given volume of the fibers can carry many times as many impulses as a similar volume of copper wire, and may eventually obsolete the latter in telephone communications--as well as in computers, aircraft and for many military purposes.
Think of it as a sheet of chicken-wire that is just a single atom thick, but also lightweight, strong, airtight, stretchable, transparent and an excellent conductor of both electricity and light.
In 2007, Gergiev became the London Symphony Orchestra's Principal Conductor, delighting its musicians with his passion for the Russian repertoire and ability to shed new light on familiar works.