...with Dr. Solomatov's closing comment:

"We don't have enough data yet but all the evidence we have now points out that the Earth is a very special place. Maybe we should take better care of our planet."

...especially the part that says "We don't have enough data yet..."

Since we can't even determine for sure if our closest planetary neighbor does or does not support even microbial life, I thinks it's a bit premature to make predictions about the extent of ETI throughout the cosmos.

The "rare" conditions under which life arose on Earth are reflected in the idiosyncrasies of the creatures which inhabit the planet.

I suspect that creatures inhabiting distant worlds will follow a similar pattern, i.e. they will be adapted to its environment, and reflect its characteristics, not Earth's.

sp