Very interesting article about life existing before Earth. I am not surprised. I have always believed and discussed the possibility in rhetoric and conversations. Although this is a theory based on Moore’s Law, there are well pronounced evidence that life existed before Earth.
I also believe some of us, if not all ancestries were originally from different planets and galaxies. Once you can wrap your head around the idea of a life form hitching a ride on asteroids or any other object flying through space and time, it begins to make a lot of sense.
We are made of star stuff__Carl Sagan
You can read the article here; http://news.discovery.com/earth/could-life-be-older-than-earth-itself-130417.htm