Scientists have created a microscopic QR code so tiny it can only be seen with an electron microscope—smaller than most bacteria and now officially a world record. But this isn’t just about size; it’s about durability. By engraving data into ultra-stable ceramic materials, the team has opened the door to storing information that could last for centuries or even millennia without needing power or maintenance.
The fact that the material is resistant itself does not mean that a layer of atoms of a few nanometers of thickness is scratch resistant itself.
I guess you’d have to store it in a protected area and handle it with gloves, which doesn’t feel much more appealing than magnetic tape.
In a drill bit you don’t really care if a few atoms on the external surface fly off, in this case you would.
The fact that the material is resistant itself does not mean that a layer of atoms of a few nanometers of thickness is scratch resistant itself. I guess you’d have to store it in a protected area and handle it with gloves, which doesn’t feel much more appealing than magnetic tape.
In a drill bit you don’t really care if a few atoms on the external surface fly off, in this case you would.