To call this a "a very very long video about "why you shouldn't use TrueCrypt hidden volumes"" is not accurate and does not do justice to a very interesting talk.

First, Part 1 is only 1 hour and 17 minutes long (though perhaps it felt much longer to you).

Second, while the subject of TrueCrypt comes up a couple of times in the Q&A period, it's not the main subject of the talk. The talk is about privacy, anonymity, surveillance, and what can be done about them.

I highly recommend watching this video, especially for people who might not be up to date on all the latest privacy-enhancing technology or who might not be very aware of how much digital surveillance there is these days. Even if you do know about these things, it's still interesting to hear an intelligent, articulate presentation about them.