That’s the problem, a lot of CS professors never worked in the industry or did anything outside academia so they never learned those lessons…or the last time they did work was back in the 90s lol.
Doesn’t help that most universities don’t seem to offer “software engineering” degrees and so everyone takes “computer science” even if they don’t want to be a computer scientist.
That’s exactly how NAND flash works though… it’s a continuous range of voltages and they just subdivide it into how ever many bits they want.
The article mentions something about being able to nudge the voltage up and down with this new tech, I guess as opposed to setting to 0 and then writing again, but it’s not clear how that would allow for more bits per cell over NAND rather than just being faster from not needing to erase and write…