1. Wow. Life evolved because life exist? Wow... That is deeply religious statement.
2. What is this? No abstract, no conclusion. What is that? They had to hoax the original experiment by finding the missing vials in 2008. Why? Because there were no other ways to cheat the truth - the fraud was needed.
3. Sorry, but... it is probably the same reasoning as in point 1. Am I right? Because statisticly it make it less probable. Still it does not make it impossible.
4. "Wikipedia does not have an article with this exact name."