The above results have demonstrated viability of these two additional technologies to meet the need for permanent deep archival of digital data. The solid state option has the potential to equal flash memory in density and performance, and for the data to persist at least 1,000 years. The optical tape option has the potential to equal magnetic tape in density and performance, and for the data to persist much longer than today's magnetic media. These two permanent storage technologies could be available in as little as three years.
Barry M. Lunt, Matthew R. Linford, Robert C. Davis, Sarah Jamieson, Anthony Pearson, Hao Wang, "Toward Permanence in Digital Data Storage" in Proc. IS&T Archiving 2013, 2013, pp 132 - 136, https://doi.org/10.2352/issn.2168-3204.2013.10.1.art00029