Satire my friend.....hence the "Z".....
(Full disclosure: degree in Applied Physics, worked on signal processing for x-ray laser research projects in upper division lab work)
Oops, sorry, hard to tell on the monitor. I'm a hairy-knuckled engineer, though been around a few physicists (most famous probably Feinstein, only very briefly, what a character!) Designed a few VCSEL drivers and dealt with some optical laser systems but never got very deep into them.
Back on-topic, more or less, regarding the previous jitter comment: The original AES spec allowed a lot of jitter (like 40-50 ns pp) but I thought it was knocked down to 1 ns or 0.1 ns when consumer DACs started using the recovered clock (unlike many pro systems). Now DACs typically decouple their clock from the datastream but I am not sure the AES (S/PDIF, TOSLINK) jitter spec -- should know, spaced it, long day (back hurts from shoveling and it's affecting my brain tonight).