Even with conservative numbers they have suggested at least 10,000 life bearing planets per galaxy.
Between 10-100 of those would have intelligent life.
That is a point of contention. Ever hear of the Rare Earth hypothesis? It might be that life (systems of increasing free energy) is common throughout the universe, but that almost all of it is microbial life.
We tend to think of the human being as the end-point of a linear process of progressive evolution, but we are anything but. The more I learn about biology, the more we seem to be a result of fortunate blunders characterized by inefficiency and suboptimal adaptations...all of which is inversely proportional to complexity. The more simple you are, the better adapted you are to changing conditions, and your adaptations to the environment are more likely efficient and optimal. There's a lot to be learned from bacteria.
