I've been saying this for years and for some reason no one seems to take it seriously: we're heading towards an era where it's going to be incredibly difficult

I've been saying this for years and for some reason no one seems to take it seriously: we're heading towards an era where it's going to be incredibly difficult to differentiate real and fake information. It's not going to be wholly fake or auto-generated content either. It'll be taking something that is real and modifying it to make it false where you have a hard time telling which one is real. Interestingly, this issue came up in the book Anathem that had bots basically creating fake information and then selling you a solution to filter it out.