In modern  world we have technical level over sci-fi writers could imagine. During last 20 years progress of memory devices runs from big 5 inch disc (1,2 Mb) to MSD cards of novadayes, small size containers of more then 64 Gb. We all depend of memory. Today our devices takes the great part of informational storage and therefore we depend from it.

It turns me to the idea about what is our