Good quality production but the science behind it it's spotty at best if not outright collections trows in the dark . Even leaving all the science to the side , think about it in the following way . Almost every human that ever existed came into being trough the same exact process and we came to exist as a species here do to the simple fact that this is the place that could support life . Where do you expect to find grass ? Growing trough the concrete or on some fertile soil ?