Currently archaeologists use carbon dating to establish at least a bandwidth for the age of something. They have an interesting definition of "The Present" as 1950 onwards, as the atmosphere was affected by nuclear testing, making carbon dating pretty useless for anything from 1950 onwards.

My premise is this. With the dawn of the Information Age, historians will likewise have to come up with a date defining the beginning of "The Present", where any source material published after that date would be presumed useless. AI especially has made photographs and other documents no longer a reliable reference, and even such things that might have originated from before that cutoff that get republished after that date have no veracity whatsoever.

Suddenly, libraries of books, magazines, newspapers, film, in essence all forms of media published before that date become more rather than less valuable.

It is often said all the knowledge of man is available on the internet, but now that can no longer be considered true. Since digital manipulation culminating in AI generation, everything on the internet no longer has any veracity whatsoever. That spills over to all other forms of media as well. It can no longer be called "knowledge".

Any interpretation of history which uses evidence gleaned from human record after whatever date might be determined as the beginning of "The Present" can no longer to be considered supported. Certainly, "the record" has ended, as a matter of historical record, anyhow.

Has History ended? With no confidence in the record going forward, I believe it has. Humans may continue to live, but the story of human history must end here. We speak of the prehistoric; going forward we shall live in the posthistoric.