Are We Really Alone in the Universe?

Alien encounter sets out to answer the question, are we really alone in the universe. Listen to alien encounters on apple podcasts, spotify, or wherever you get your pod casts. The only technical reference that i have seen to an obsidian mirror from chattelhoy states that it is slightly convex. With special preparation of a core and great care during the grinding process, one could probably make a nearly flat mirror with no obvious distortions in the image. But anyway, this started getting the gears turning in my brain. Because if you were living in a culture that did create artificial mirrors, but just as a sort of by product of the of th technical production process that creates the mirrors