"How did you remember what all those keys and passwords were for before the introduction of thought identification software?"
We aren't sure about thought identification software just yet, but technology like biometrics – the identification of humans through physiological characteristics – is a growing practice in the technology sector. The newest smart phones already employ fingerprint scanning technologies and hopefully by the time babies born in 2014 have their own computers, they won't have to maintain a little black book of passwords to access their files and accounts.