Glen Hawk emphasized the fact that this part is the smallest die size 128Gb NAND available much more than the 16nm process technology. But I agree that given the surprising move by SanDisk/Toshiba to stay at 19nm, Micron's migration down to 16 is impressive and differentiating.
Thanks guys for making me feel old! It seems like not that long ago that I was in the Boise Micron plant watching the boats of wafers float overhead and hearing the brags of the engineers that they were "sub micron".
But I am that old -- I can remember us repairing mask or design defects so we could test by "smushing" traces together or apart with a probe needle viewed through an optical microscope.