I know Andreas Antonopoulos as a great Bitcoin teacher. His ability to break down complex terms and communicate them in a manner that a layman can understand makes him one of my favourites. He is also a die-hard Bitcoin advocate that is worthy of emulation. At a time when social media is filled with junk, he is one of the few I can gladly recommend learners to.
The title of this thread/YouTube video does not reflect the content. I tried to identify how he changed Bitcoin and found none in the video. Maybe it is a click bait or they intend to say that he changed how Bitcoin was taught globally. Indeed his teachings has attracted many people to Bitcoin.
It's perhaps his teachings in those early days of Bitcoin that really put his name amongst those who contributed to the advancement of Bitcoin itself. And up to this day, if some newbie will ask if they wanted to learn Bitcoin and who or what videos we might want to recommend then it could be Andreas Antonopoulos.
And he has a lot of followers, and he was even once part of this great community:
aantonop.