Given the vastness of the universe, I’d guess that it’s highly unlikely that our little blue dot is the only place with sentient life. Our galaxy alone has over a hundred billion stars and the Milky Way itself is just a tiny blip in the Laniakea Supercluster which has 100,000 galaxies, and the Laniakea is in turn a subset of even larger collection of superclusters.
Agreed, I just commented to someone else and said the same.