Thats the prob with youtube.....you just don't know whats real or not these days. I wouldn't worry about the world ending this year...If they made a hollywood film from it then you know its BS.
There are many strange phenomenoms coming to light recently with no real evidence to support or discredit them so i say what I say to everyone else, believe what you see or hear with your own eyes and ears.
I posted a video on yt a while back of an aircraft in the sky that appeared to be transparent, like a hologram, leaving what some may call a 'chemtrail' although thats was a good few years ago and not sure if the video is still there as cancelled my account ages ago.
Also with the new age of cameras available to everyone some of these previous unrecorded phenomenom are appearing all over the place and up for descussion were around ten years ago there would be no medium for normal people to share this kind of thing.