Well, you know perfectly well what I meant. If you release a baseball at 10,000 feet here on Earth, it's a weird way to put it but you could say that the ball's objective is to fall towards the Earth. I could have said that there are physical forces that make DNA survive into the next generation and spread. At the end of the day, it's just chemicals interacting. Is this not true? Could have life spread on Earth if it didn't work that way?