I enjoyed your video and something did occur around 12,000 years ago.
As you know I have found some very interesting cave paintings in the Kimberley one in particular is what I think is a meteor. Now the Wolfe Creek meteor crater is the second largest in the world only a couple of hundred kilometres from the site of the painting. Wolfe creek was originally dated at 400,000 years however a US mining company has challenged that date and said 10 to 20 thousand years.
I found this painting in the Kimberleys a couple of years ago photo by the helicopter pilot I have a video. I have given the co ords to my aboriginal friends who have visited the site and it is now with the University of WA. Whoever painted this must have had a pretty good look and you can see by the colouring. There is also another smaller painting in the next cave not as good though.
Whatever happened happened fast and must have been seen and recorded from Indonesia.