I would say fiction, Youtube is full of fakes and time wasters. Even the most respected of people that claim it is true or
UFO's / Aliens are real have been uncovered as frauds. There is maybe 99% of public info that is a hoax, the other 1% cannot be verified either way.
If you look at the various sources for this, they have all been caught in a lie at least once, to my mind they are simply preying on the weak and trying to achieve wealth through book sales or other means. This has happened countless times before and as I see it has no reason to abate, different book different pseudonym.
How many cult's have sponsored such a thing in the past and how many cult's or "cult like" entities sponsor this now?
It should also be worth a mention that 2038 is also being thrown about... obviously as a backup plan for those authors.