There's whitepapers and articles every few years on Holographic storage, it's one of those perpetually just around the corner things. See also memristors, that

There's whitepapers and articles every few years on Holographic storage, it's one of those perpetually just around the corner things. See also memristors, that HP in particular have been saying is coming in the next couple of years, fundamentally changing the entire computing industry, for decades.