Good post by Howard Marks (thank you)

Despite predictions every few years that we’ve reached some physical limit, the semiconductor industry has managed to double the transistor density of its products every two years, as predicted by Moore’s Law. For many years, disk drive bit density doubled every two years following Kryder’s Law, but recently drive vendors have been struggling to produce the ever bigger disks we as users demand. Their latest trick is to overlap disk tracks in a technology known as Shingled Magnetic Recording (SMR).

Read on here