Kind of a big one I know, but anyone got a clue? The basic landscape, for those unfamiliar, is that they're making SSDs bigger and faster so quickly by stacking more bits into each cell in NAND chips by increasing the number of voltage states a cell can have, to increase storage density. From SLC (single layer) to MLC (multi, i.e. two layer), TLC (triple layer) and now QLC, quad layer - ambiguously called '3D NAND' and various other euphemisms, and sometimes denoted by a Q in the model nomenclature, or just not mentioned at all in product descriptions. Most vaguely say "MLC" which can mean 2, 3 or 4 bits per cell, and much digging is required to find out more precisely what architecture they're using. Which is annoying because for reasons I don't understand, this stacking of more and more bits in a cell has a negative impact on reliability: the most reliable SSDs are still the single layer ones, but they're very expensive (and possibly slower?). The question is, is this going to get better or worse? Are there mitigation techniques around the corner that might improve reliability again, or is the ongoing push for more storage density and speed going to mean that SSDs just get less reliable, or stay as unreliable as the current crop of QLC?