Example: In response to a question re space aliens, ““The question presumes that aliens do exist. And again, because we haven’t found any yet, we don’t know if they do. It is possible they may exist, for one simple reason: we exist. Whatever made the likes of bacteria evolve into complex bodies with intelligent brains on Earth may have also occurred on another planet.”
Speculations about space aliens isn’t. It may take a while to find out if there was ever life on Mars but maybe we’ll really know something this time.