Don’t want to knock the guy, but if he says this:
“Personally, given the ubiquity and propensity of life to flourish wherever it can, I would say, my own personal feeling is that the chances of life on this planet are 100 percent,” said Steven Vogt, a professor of astronomy and astrophysics at the University of California, Santa Cruz, during a press briefing today. “I have almost no doubt about it.”
Then he’s probably not a really good scientist. At least from my understanding, scientists weren’t supposed to say things like that. Gotta be humble. Gotta recognize the limits of your knowledge. Gotta know that if you say something is definite, the universe, being the practical joker it is, will deliberately do the opposite.
Is it incredibly likely? Maybe. Is it 100%? No. Nothing is guaranteed. Although I would be very interested if it did have life. Whether or not that life would be intelligent, I’m not so sure if I’d be okay with that.