It was more the thought exercise itself than a practical approach. I just wanted to consider the benefits of very low mass offers to space travel. Sounds like

It was more the thought exercise itself than a practical approach. I just wanted to consider the benefits of very low mass offers to space travel. Sounds like you're talking about panspermia, which does seem very likely to me as well. http://en.wikipedia.org/wiki/Panspermia http://en.wikipedia.org/wiki/Panspermia