Exceeding the Limit of Earth-Based Storage
From a PDF presentation on Sun’s ZFS (emphasis mine):
ZFS Scalability
- Immense capacity (128-bit)
- Moore's Law: need 65th bit in 10-15 years
- Zettabyte = 70-bit (a billion TB)
- ZFS capacity: 256 quadrillion ZB
- Exceeds quantum limit of Earth-based storage
- Seth Lloyd, "Ultimate physical limits to computation." Nature 406, 1047-1054 (2000)
Found at FatBits.