The media's been lying to us for as long as it has existed.
Prior to the Internet the range of opinions which you could gain access to was far more limited. If the media were all in agreement on something it was really hard to find a counter-argument.
We're so far down the rabbit hole already of bots and astroturfing online, I doubt that AI deepfake videos are going to be the nail in the coffin for democracy.
The majority of the bot, deepfake and AI lies are going to be created by the people who have the most capital.
Just like they owned the traditional media and created the lies there.
Right, by which standard truth has never been a shared grounds of discussion. I think that there's a big difference between "some people lie" and "there's no agreement on shared truth."
I can't see how functioning democracy can survive without truth as shared grounds of discussion.