Science doesn't consider vacuous propositions. If your proposition leads to some kind of research, such as looking for a specific class of fossil at a specific location in specific strata, it might be interesting.
Or if it suggested some kind of laboratory experiment, such as adaptation to alternate food sources in bacteria, it might be interesting.
The existence of intelligent agents other than on Earth can be considered vacuous because we currently don't have the means to search effectively for it. Humans, of course, are intelligent agents in their own right, and by the postulates of evolution, intelligent multicellular beings should exist in the Universe. How long they last as such is another matter.
I speculate however that if a quantitative theory of evolution was ever established that predicted humans should arise 400 billion years after the first one celled organism rather than 4 billion years, one would have to at least add the intelligent agent hypothesis to the mix.
I'm not current on the research, but as far as I know, there is no quantitative theory that predicts the time scale from microscopic to human life.
My reading has encountered examples where adaptation to environments by bacteria might not depend on fortuitous mutations at the time, but of unexpressed DNA already in the organism's chromosomes that is activated under conditions of stress. You could say that evolution put the DNA for different environments in "cold storage" until such time as it was needed, or that DNA knows to archive these fragments for future use, or that natural selection favors those organisms that store this DNA, and the ability to pull it off the shelf when needed.