itwbennett writes: At the Heidelberg Laureate Forum in Germany this week, RSA encryption algorithm co-inventor Leonard Adelman, 'Father of the Internet' Vint Cerf, and cryptography innovator Manuel Blum were asked 'What about the tech world today keeps you up at night?' And apparently they're not getting a whole lot of sleep these days. Cerf is predicting a digital dark age arising from our dependence on software and our lack of 'a regime that will allow us to preserve both the content and the software needed to render it over a very long time.' Adelman worries about the evolution of computers into 'their own species' — and our relation to them. Blum's worries, by contrast, lean more towards the slow pace at which computers are taking over: '"The fact that we have brains hasn't made the world any safer,' he said. 'Will it be safer with computers? I don't know, but I tend to see it as hopeful.'