AI video generation is becoming increasingly indistinguishable from reality

I was watching videos of robots from companies that claim to have the product at scale, then I thought, what if these companies are using AI to get investment? Doing the same thing Elon Musk did by lying using a human as Tesla Optimus...

Watch the video below, some videos that seem to be real, but are made using AI, such as Hollywood actors meeting their younger version:

Or this other one:

As it is possible to see, AI videos are almost indistinguishable from reality, will we really reach a time when the dead internet theory becomes reality? I can already imagine that if AI for video is like this, then for sure there must be thousands of users on social networks that seem human, but in fact are AI?