What I have an issue with is defining preconceptions of sentient intelligent life. My thoughts are based on the infinite environmental conditions existing in the vastness of space, that life may have assumed such an alien for as to be conceptually incompatible with what we expect an for an intelligent life form. Maybe they are christalyn or something so alien that we can't easily recognize their technology? I believe they have defined levels of identifiable civilizations via the Kardashev scale. I just wonder if it's inadequate to truly define the potential form that an alien civilization may take.
I imagine when we get out into space, and I mean really get out there, our entire definitions of life, physics, and a few other things will have to be completely reevaluated.
And we’re still a puny type 0.