As so often happens in THIS Indigo mind, I came across some unrelated fact that prompted the memory of something else...but there seems to be a connect.
In researching information about Blue Ray DVD, I came across this:
"The Blu-ray Disc is an optical disc storage medium designed to supersede the standard DVD format. It enables the recording, rewriting and play back of up to 25 gigabytes (GB) of data on a single sided single layer 12cm CD/DVD size disc using a 405nm
blue-violet laser. It Blu-Ray gets its name from the type of laser it uses to read and write data from and to the disc, the color of the laser is a hue of blue-violet."
Which reminded me of this: Are Humans Beings Of Light?
"There was another odd property of these compounds: each of the carcinogens reacted only to light at a specific frequency -- 380 nm (nanometres)
in the ultra-violet range. Popp kept wondering why a cancer-causing substance would be a light scrambler. He began reading the scientific literature specifically about human biological reactions, and came across information about a phenomenon called 'photorepair'." from the thread Cancer