He's not been really out of the public sphere. He has always been involved in a number of social issues through his foundation and have been very vocal/public

He's not been really out of the public sphere. He has always been involved in a number of social issues through his foundation and have been very vocal/public about them. Maybe we're just hearing a bit more about him and his thoughts because he's involved in looking for a way out of Covid through his foundation, and has famously 'predicted' something like this.