What they don’t mention but supports their argument is that the material science to create blue phosphors wasn’t economically feasible until just before 2000. … So, yes, blue lasers, blue LEDs, in essence the color blue itself, used optically WAS indeed futuristic.
The second thing they don’t bring up is the actual physiology of the eye. The human eye sees blue the LEAST. … When designing and animating Science Fiction interfaces you can use blue to keep the action on the actors and not let what is on the display steal focus.