It would be nice to somehow constrain these possibilities. Mesh the various generations of stellar populations with the time for interstellar travel under vario

It would be nice to somehow constrain these possibilities. Mesh the various generations of stellar populations with the time for interstellar travel under various scenarios, with the time it has taken for the sequences of more complex living structures to evolve etc. Are there any catalysts that are much faster diffusing than being reinvented locally? Maybe there is a paper about that already or we dont know enough to derive something useful from such constraints. The concept of carbon life as a universal and migratory phenomenon is certainly appealing. The question is whether the few pieces of the puzzle we have already sketch anything concrete about the many missing pieces.