My not knowing is a diff not knowing... I actually don't think I dream at all most of the time ,,,but I know I do cause maybe 3/4 times a year I will wake up and remember dreaming something... I remember when I was little having dreams but,,, I for some reason was able to shut them off cause they where bad,,,I did not want to dream... I think I effectively subconsciously just turn them off like a TV...