Re: Make those bits work harder?
The thing with your idea is that if you can alter polarities more precisely, it would be easier to just use smaller areas to represent the bits, which is what' has been happening steadily with hard drive technology: the surface area of the drive used as the "bit" gets smaller and smaller. Trouble is, we're reaching a point where physics really is getting in the way. Not in the sense that we're down to flipping single molecules but still at the point where the latent magnetic fields of adjacent "bits" could cause the bit you're on to naturally "rot" and spontaneously switch. That's why the current push is for HAMR: Heat-Assisted Magnetic Recording. If the bit can't be changed unless above a certaintemperature, then it's less prone to neighboring fields and can be made even smaller.