We absolutely can use statistics like that because we already know that the variables for life to exist MUST exist because we do. There are 100 billion planets in our galaxy, and 200 billion galaxies out there. The chance that our planet is the ONLY one that had the conditions for life to form would be infinitesimally small.
We absolutely can use statistics like that because we already know that the variables for life to exist MUST exist because we do. There are 100 billion planets in our galaxy, and 200 billion galaxies out there. The chance that our planet is the ONLY one that had the conditions for life to form would be infinitesimally small.