I think intelligent life abounds in the universe, but we are all isolated in our own little spheres of time and space, and will never interact directly.
We may leave some detectable wavelengths that will be analyzed in a billion years, a billion light years away. Or we may detect some from some civilization that blipped out three billion years ago.
But nobody's stopping by for tea and anal probes.
Thanks for demonstrating yet again . . .
how easy it is to pontificate without
significant research, study, fair-mindedness, understanding, knowledge . . . etc. about the topic.