There was ad by NeXT -- "In the 90's we'll probably see only ten real breakthroughs in computers. Here are seven of them." that lists making Unix usable as one of them. I have this poster framed in my office.

A copy and someones review of those seven here: http://wemmick.net/writings/next-predictions/

Optical storage maybe not. But others like Unix, multimedia email and "programmer productivity" faired fairly well.