Time for 3 dimensions
to increase storage by a massive factor. How to get there is another problem some kind of crystalline structure that is laser read and written to. Should be good for severel petabytes.
Current perpendicular magnetic recording (PMR) for hard drives is going to reach its areal density limit, and it looks like the industry has not yet decided on which candidate technology is going to replace it. PMR reaches its limit when the magnetised area is so small its north or south pole state can be flipped by random …