But how is development of new forms of media? Which hold even more data, write and read it faster, and last longer. And thus can be used as long term backups?

But how is development of new forms of media? Which hold even more data, write and read it faster, and last longer. And thus can be used as long term backups? How much innovation and progress is happening in that? Microsoft has Project Silica but that's crazy expensive. Only huge corporations, government and maybe churches could afford it. Not individuals. What are the chances we some day see something like Project Silica as a cheap commodity product, femto lasers and all?