This!!!
If you want to explain to somebody what bitcoin is and its purpose and strength is against other currencies are there are a lot of other videos and resources about it, Saylor is not one of them. If you just want to convince somebody to buy coins because he might earn more than go for it, he might find this guy charismatic enough to buy.
In a contest between Saylor and Antonopoulos, who was mentioned a few lines up, well, there is no contest at all. This guy is in BTC for the money, the was a critic of but then he smelled the profits and he has become for some an iconic figure, just how some will suddenly have memory loss immediately even for Soros or the Rothchild's or Warren Buffett and follow and like every tweet they will make about BTC.