Yeah, so it's tried and true proven tech with a second life to sweat the asset dry. Kinda like turning your old pc into a 'server'. All the tech that goes into making a flash chip only has to be of fine tolerances for a few hours. Then the product is a largely inert lump of material where the precision mostly stops mattering. Get it right once and it's fine. Yes, I know nothing's perfect. A HDD has to be high-precision for years while suffering mechanical wear and tear. It has to put that mechanical read head on that spinning vibrating disc to within micrometers of target 99.9999% of the time billions of times. Not cutting edge?