You’ve fallen prey to observer bias; that the existence of observers in one place and time means that observers must exist in most places and times. In other words, that the environs of any observer must represent a typical sampling of the universe, but observers will normally find themselves in environs that permit the existence of observers; which might not be a typical sampling of the universe at all.
I can illustrate this with an historical example; when it was determined in the 16th century that the stars were like our sun, and that the planets (wandering stars) were worlds like our Earth; many intellectuals adopted the view that all stars had planets and that all planets supported not just life, but sentient life. While it appears that most star systems may include planetary bodies; the second supposition is much less certain. Certainly there are no intelligent Martians, Venerians and Mercurians.
You’ve fallen prey to observer bias; that the existence of observers in one place and time means that observers must exist in most places and times. In other words, that the environs of any observer must represent a typical sampling of the universe, but observers will normally find themselves in environs that permit the existence of observers; which might not be a typical sampling of the universe at all.
I can illustrate this with an historical example; when it was determined in the 16th century that the stars were like our sun, and that the planets (wandering stars) were worlds like our Earth; many intellectuals adopted the view that all stars had planets and that all planets supported not just life, but sentient life. While it appears that most star systems may include planetary bodies; the second supposition is much less certain. Certainly there are no intelligent Martians, Venerians and Mercurians.