Yeah, the presentation covered those parts (motivation, and putting the pieces together). C++14 rejects the bad code by providing a deleted overload for const string&&, as covered in the following slides.
My slides are already at the upper limit for information density - I don't think I could cram even more into them.
I agree about information density of the slides. There are some potential solutions:
(1) Write most of what you would say as notes on each slide. Some presenters do this to help them get through a presentation anyway; you can do it to help readers after the presentation.
(2) Encourage the venue to record video of the talk, or at least audio. This can be synchronized with the slides using various software packages. The audio needs to be very high quality--a camcorder mic in the back won't do.
The talks were professionally recorded (and will be available in like a month). Thanks for the reminder about notes - I don't need them myself, but I didn't consider that people would want to read them in the slides.
My slides are already at the upper limit for information density - I don't think I could cram even more into them.