Researchers demonstrate 3D nanoscale optical disk memory with petabit capacity

https://phys.org/news/2024-02-3d-nanoscale-optical-disk-memory.html

"optical data storage capacity reaches petabit level (equivalent to >10K Blu-ray disks) extending planar recording to 100's of layers 3D thereby breaking the optical diffraction limit barrier in spacing of adjacent recorded features of recorded spots... shrink data storage for AI to desktop computer size reducing costs... energy consumption several orders magnitude lower... lifespan 50–100 years... AI and big data"