That whole too complex thing... what, was he hired by Google as a janitor? Or a janitor's helper? Seriously, too complex? For whom? Is he trying to teach a German Shepherd to program? Twit. If you came to my company for a job, and you told me C was "too complex" or "too hard", I'd just show you the door.
I think this guy is onto something. Some sort of unique vision on computing that is totally unheard of. Different than anything we are used to. Something so unconventional that it is controversial and is unthinkable without *really* getting out of the box (and leaving the planet where the box lives). I think this vision is about a revolution in the way which we do computing. A step closer to a day when machines will actually work for humans (not the other way around as Today). Anyone would be able tell a machine, in 'human forms and ways', to do stuff for them, without learning the 'machine rules'.
Too bad you wont hire him, but something is telling me he is not interested in the kind of work you are offering (not to mention salary). There isn't any particular known shortage of good 'regular' coders. Google must have something different for him.
The computer is fast enough and powerful enough to do what you want it to do without you needing to exercise that level of control over how it actually does it.
No computer is powerful enough to keep up with the crapiness of the software that may run on it. Look at Windows...
It may happen that you are forced by somebody to reveal the password to an encrypted volume. There are many situations where you cannot refuse to reveal the password (for example, due to extortion). Using a so-called hidden volume allows you to solve such situations without revealing the password to your volume.
1- They are expensive
2- They will hold less charge due to a significant proportion of the volume used up by extra electronics and mechanics.
Any sufficiently advanced technology is indistinguishable from a rigged demo.