You could do a pretty good update of 1984 with this tech. A person goes to a rally where the President gives a speech decrying the evil of global warming, and t

You could do a pretty good update of 1984 with this tech. A person goes to a rally where the President gives a speech decrying the evil of global warming, and then later online all the reviews have clips of him saying global warming doesn't exist, and the viewer just changes their mind to believe what they saw in person wasn't real. An occasional hacker-led SEO attack will push up the real video from the original speech, but because it's so rarely published, everyone just assumes it's a fake designed as propaganda. Virtually everything we fear could be turned into something good for us, and media generated by AI becomes an engine that transforms people's thoughts. A bug in the AI software accidentally makes everyone believe we should all destroy our computers to prevent getting some virus, only later to discover that the computers were distorting our thoughts and that nothing was as it seemed.