"essentially that's it"

And that is it, if you do not erase blocks often the cells stay intact.

The only way you can make that happen and not tax the flash blocks, is with an offering as e.Digital demonstrates.

If one is flashing the blocks often in a ware leveling process, all the cells in the flash block will wear out at the same time. This method of self healing with heat , means the whole flash block would have to be heated and repaired...not just a hand full of cells as the PR represents...."small groups of memory cells"

doni