I have to say Leo videos are suburb, the work is excellent, holds very good ideas and excellent flow of language.
I do not if it is important but I was interested whether Leo holds any kind of biography or I was searching for a wiki page about studies etc.
I mean topics cover psychology, philosophy, theology, social issues etc.
I think either 68000000 views make someone famous and people get interested on this stuff also.
So I would ask a more personal video or blog post.