I see myself as a journalist reporting neglected stories about our past and trying to bring rigor, reason and intuition to the quest.
Whether Earth was deliberately terraformed, in other words, or whether it was seeded with the spores of life from crashed comets or whether, indeed, life arose here spontaneously and accidentally, it is reasonable to hope that we might find traces of the same kind of process on Mars.
I'm not an academic; I'm not an archaeologist. I'm a writer, communicating ideas to the public. There is a model of how the past is, and a lot of academic archaeology is about refining the model. It's not about changing the model radically. I'm not aware of any current which is about radically changing the model. It's just me, really.
It's odd that invoking the possibility of alien influences should itself be a sign of madness. I don't see the need for it to explain history on earth, but I can't see any reason why the universe shouldn't be full of life.
Many people say I believe aliens built the pyramids. I don't. In fact I'm not a supporter of the 'ancient alien' hypothesis at all. I think a lost human civilization is a much better explanation of the mysteries and paradoxes of ancient cultures.
At a deeper level what this whole exchange revealed to me was something disturbing about the way science works. I hadn't quite grasped the role of fear before. But I could see it in action everywhere here: fear of being 'noticed and monitored by colleagues,' fear of unwanted negative celebrity, fear of indignity, fear of loss of reputation, fear of loss of career--and not for committing some terrible crime but simply for exploring unorthodox possibilities and undertaking 'somewhat controversial research' into what everyone agrees were extraordinary events 12,800 years ago. Worse still, this pervasive state of fear has somehow ingrained itself so deeply into the fabric of science that those who have embraced unorthodox possibilities themselves are often among the least willing to consider unorthodox possibilities embraced by others--lest by doing so they 'contaminate' their own preferred unorthodoxy. How will it ever be possible to discover the truth about the past when so much fear gets in the way?