Quote:
Originally Posted by marumari
Because they are closed minded. 
Wake up people - we aren't the only ones in the galaxy. They just found water flowing on Mars. How much more obvious does it have to get? |
What are the ODDS of life appearing on a planet with water? We know absolutely nothing about that. We can't generalize from our one experience.
Abiogenesis appears, on the face of it, to be a very low probability event. Maybe it is not but again we know next to nothing. To go from "We don't know much about it" to "It exists and is visiting us" is not open-minded. It is exactly the opposite. An open-minded person would accept the possibility that maybe we are alone. Maybe life is so improbable that even with the vastness of the size of the universe it has only appeared once.
Maybe the factor in the Drake Equation for number of potential planets with life that develop it is so absurdly low that we can't expect to find life elsewhere.