It remembers for keeps

Anyone who works with computers learns to fear their capacity to forget. Like so many things with computers, memory is strictly binary. There is either perfect recall or total oblivion, with nothing in between. It doesn’t matter how important or trivial the information is. The computer can forget anything in an instant. If it remembers, it remembers for keeps.

~ Maciej Cegłowski, from his talk at Beyond Tellerrand