And statistically speaking there are potentially 10,000 other planets just like ours; "Perfectly tuned" is an argument that can only be made if we have knowledge of all other 'earth-like' stars (of similar masses and compositions) to our sun, and they have demonstrated to be dead zones. We don't have enough information. -There are statistics and statistics. I'm sure there are 10K planets that are very close to ours in every detail. I don't know if they have life, if they crossed that enormous threshold. They are all perfectly tuned. My sheep are on Earth. None of us know if they are elsewhere.-The point of my entry was the dangerous universe and how we are locally protected.