I always felt that the devil has been involved in all this. He can make the earth appear much older or much younger. He can make us believe that man did not exist with dinnosaurs. After all he is the great deceiver. I for one used to believe UFO existed, even saw some. But then thru my bible studies and more reading of my bible I realized it is just the devil and his cohorts doing their dirty deeds. He is very active in our times.